Before performing the rituals on various Gods one must know what Gods supposed to be in actuality according to Vedas, Upanishads.+

Rig Veda: ~ 'Prajnanam Brahma'- Consciousness is the ultimate reality or Brahman or God in truth.

Do not accept any other God other than the Soul. The Soul is God in truth,  Nothing is real but the Soul, which present in the form of Consciousness. Nothing Matters but realize  God in truth. God in truth is everywhere and in everything. Let these words be inscribed in your subconscious.

God in truth is hidden by the illusory universe. God in truth alone is real and eternal and all else is an illusion. 

Brahman is merely a word to indicate the ultimate truth or God in truth.  The ultimate truth itself is God in truth.

Remember:~

The essence of Mundaka is: Do not be satisfied with rituals, yoga, etc. which are good in their own way, but inquire. Into what? Brahman and Atman are things you can never see. So do not inquire into them. Inquire into the world around you, which you can see. Science tells you it is passing away every second. Everything is dying repeatedly. Where is it going? Thus you follow up your inquiry into what you can lay hands on. How can you inquire into Atma which you cannot see? So first we deal with the known and seen, this inquiry leads up to the unknown in the end.

Mundaka Upanishad: ~ “The rituals and the sacrifices described in the Vedas deal with lower knowledge. The sages ignored these rituals and went in search of higher knowledge. ... Such rituals are unsafe rafts for crossing the sea of samsara, of birth and death. Doomed to shipwreck are those who try to cross the sea of samsara on these poor rafts.

Ignorant of their own ignorance, yet wise In their own esteem, these deluded men Proud of their vain learning go round and round Like the blind led by the blind.

Sage Sankara pointed out that rituals could in no way bring about wisdom, much less moksha. He asserted while the rewards of the rituals were not mattered of direct realization, wisdom which is the fruit of Vedanta is based on immediate and personal realization; one need not have to wait for the reward nor one be in doubt whether the reward would or would not come.

This was in sharp contrast to the position taken by Mimamsakas who asserted that rituals alone would lead one to higher levels of attainment. Further, the deities would reward only those entitled to perform the rituals alone. The entitlement involved the caste, creed, and other parameters.

Sage Sankara’s criticized severely the ritualistic attitude and those who advocated such practices. However, the texts that combined rituals with wisdom (jnana_karma_samucchaya) more in favor of the Mimamsaka position came onto vogue, projecting Sage Sankara as the rallying force of the doctrine. His followers might have found Sage Sankara’s mission a hard task and, therefore, compromised the liberating wisdom with the performance of rituals.

Remember:~

Before performing the rituals on various Gods one must know what Gods supposed to be in actuality according to Vedas, Upanishads, and Bhagavad Gita.

Rig Veda: ~ The Atman is the cause; Atman is the support of all that exists in this universe. May ye never turn away from the Atman the innermost self. May ye never accept another God in place of the Atman nor worship other than the Atman?" (10:48, 5)

Yajurveda – chapter- 32:~  God is Supreme Spirit has no ‘Pratima’ (idol) or material shape. He cannot be seen directly by anyone. He pervades all beings and all directions. Thus, Idolatry does not find any support from the Vedas.

Brihadaranyaka Upanishad: ~ Brahman (God) is present in the form of the Athma, and it is indeed Athma itself’.

Thus it refers to formless and attributeless God, which is the Atman (Soul), the   ‘Self’ within the false experience. Thus it indicates clearly all the Gods with form and attributes are mere imagination based on the false ‘Self’. Thus Atman or Soul, the innermost ‘Self’ is God.

Bhagavad Gita: ~ Brahmano hi pratisthaham ~ Brahman (God) is considered the all-pervading consciousness, which is the basis of all the animate and inanimate entities and material. (14.27).

When Bhagavad Gita says, God is considered the all-pervading consciousness which is the basis of all the animate and inanimate entities and material then nothing has to be accepted as God other than consciousness.

Lord Krishna Says Ch ~V: ~ “Those who know the Self in truth.". The last two words (tattvataha) are usually ignored by pundits, but they make all the difference between the ordinary concept of God and the truth about God.

The dualistic worship of "God” is only for the ignorant populace. The God in truth is only Atman, the innermost Self. In reality, there is no duality, no differentiation. Only Atman exists.

Dogmas and beliefs, rituals and ceremonies, can never be the essence of spirituality. They are based on the blind belief based  Gods. The rituals, prayers based on the false belief of God are not only superficial and ineffective and positively harmful and misleading.

Bhagavad Gita:~ All those whose intelligence has been stolen by material desires, they worship many gods. (7- Verse -20)

Brihadaranyaka Upanishad: "He who worships the deities as entities entirely separate from him does not know the truth. For the Gods, he is like a pasu (beast)". (1. 4. 10)

Mundaka Upanishad: ~ The study of the Vedas, linguistics, Rituals, astronomy, and all the arts can be called lower knowledge. The higher is that which leads to Self-realization. The eye cannot see it; the mind cannot grasp it. The deathless Self has neither caste nor race, neither eyes nor ears nor hands nor feet. Sages say this Self is infinite in the great and in the small, everlasting and changeless, the source of life.

Often they not only feed the egos of the priests but also serve as an instrument for the exploitation of the credulous.

The rituals mentioned in the karmakanda of the Vedas are sought to be negated in the jnanakanda which is also part of the same scripture. While the karmakanda enjoins upon you the worship of various deities and lays down rules for the same, the jnanakanda constituted by the Upanishads ridicules the worshipper of deities as a dim-witted person no better than a beast.

This seems strange, the latter part of the Vedas contradicting the former part. The first part deals throughout with karma, while the second or concluding part is all about jnana. Owing to this difference, people have gone so far as to divide our scripture into two sections: the Vedas (that is the first part) to mean the karmakanda and the Upanishads (Vedanta) to mean the jnanakanda.

According to Advaita Vedanta, the Veda addresses itself to two kinds of audiences - the ordinary ones who desire the transitory heaven and other pleasures obtained as a result of ritual sacrifices, and the most advanced seeker who seeks to know Brahman. Thus, the purva mimam. sa, with its emphasis on the karma kanda of the Vedas, is meant for the first audience, to help lead its followers along the way. However, the Vedanta, with its emphasis on the jnana kanda, is meant for those who wish to go beyond such transient pleasures.

Those who lack the intelligence to discriminate between formless witness (subject) and three states (object) will not be able to grasp what is real and what is unreal. Both subject and object are the consciousness, not the subject alone.

Sage Sankara:~ VC Let erudite scholars quote all the scripture, let Gods be invoked through sacrifices, let elaborate rituals be performed, let personal Gods be propitiated---yet, without the realization of one‘s identity With the Self, there shall be no liberation for the individual, not even in the lifetimes of a hundred Brahmas put together (verses-6)

Religious rites and rigid ceremonies were passed down from one generation to the next as a practice or set customs and tradition and performed automatically with blind faith. Such worship based on the belief of God does not reach God.

Religious rites and ceremonies, yagnas and homa-havans, or any other forms of ritual are meant for the ignorant populace.

Belief in God without knowing God in actuality holds the worshiper more firmly in the grip of ignorance.

All worship and the ceremonies rituals performed on the base of non-~Vedic Gods will not yield any fruits. Deeper self-search reveals the fact that worshiped, the worship, and the worshiper and the world are merely an illusion created out of the consciousness.

Religious rites and ceremonies, yagnas and homa-havans, or any other forms of rituals formal observance has long since set in.

Religious rites and ceremonies, yagnas and homa-havans, or any other forms of ritual are meant for the ignorant populace. In the Atmic path, the seeker has to discard

Sage Sankara says: ~ “The scriptures dealing with rituals, rewards are therefore addressed to an ignorant person.

Sage Sankara:~ (11) As regards the rituals, Sage Sankara says, the person who performs rituals and aspires for rewards will view himself in terms of the caste into which he is born, his age, the stage of his life, his standing in society, etc. In addition, he is required to perform rituals all through his life. However, the Self has none of those attributes or tags. Hence, the person who superimposes all those attributes on the changeless, eternal Self and identifies Self with the body is confusing one for the other; and is, therefore, an ignorant person. The scriptures dealing with rituals, rewards, etc. are therefore addressed to an ignorant person. Adhyasa Bhashya 

 Sage Sankara:~ (11.1) This ignorance (mistaking the body for Self) brings in its wake a desire for the well-being of the body, aversion for its disease or discomfort, fear of its destruction, and thus a host of miseries(anartha). This anartha is caused by projecting karthvya(“doer” sense) and bhokthavya (object) on the Atman. Sankara calls this adhyasa. The scriptures dealing with rituals, rewards, etc. are, therefore, he says, addressed to an ignorant person.- Adhyasa Bhashya 

Sage Sri, Sankara:~ (11.2) In short, the person who engages in rituals with the notion “I am an agent, doer, thinker”, according to Sage Sankara, is ignorant, as his behavior implies a distinct, separate doer/agent/knower; and an object that is to be done/achieved/known. That duality is avidya, an error that can be removed by vidya.-Adhyasa Bhashya 

Sage Sankara: ~ (12) Sage Sankara affirming his belief in one eternal unchanging reality (Brahman) and the illusion of plurality, drives home the point that Upanishads deal not with rituals but with the knowledge of the Absolute (Brahma vidya) and the Upanishads give us an insight into the essential nature of the Self which is identical with the Absolute, the Brahman.- Adhyasa Bhashya 

Sage Sankara: ~ Atman, the  Self is verily Brahman (God), being equanimous, quiescent, and by nature absolute Existence, Knowledge, and Bliss. Atman is not the body that is non-existence itself. This is called true Knowledge by the wise. : ~ Santthosh Kumaar