Ishopanishad says : ~ “They are steeped in ignorance and sunk into the greatest depth of misery who worships the matter, instead of the All-Pervading God.+

Ishopanishad says : ~ “They are steeped in ignorance and sunk into the greatest depth of misery who worships the matter, instead of the All-Pervading God (Atma or Soul) and those who worship things born of matter like trees, animals, man, etc. are sunk deeper in misery."

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. (Gita 14.27)

If you believe that the Soul is one and God (Brahman) is another you cannot understand Truth.  “If you think there is another entity, whether man or God there is no truth."  God is “One”, and God is the Soul (Atman), the Self.

That is Atman is Brahman.  That is the Soul, the innermost Self, is the ultimate truth. It means the ultimate truth is God in truth.  

Isa Upanishads indicates that: ~ By worshipping Gods and Goddesses and going to the world of Gods after death is of no use.  The time one spends in ritualistic practices is wasted; one can spend the same time moving forward towards Self-knowledge, which is the main goal. One cannot reach the nondual destination by glorifying God and Goddesses and by doing that, one goes deeper and deeper into darkness. It surely indicates the fact that the seeker of truth has to drop the worshiping God and Goddess in order to get Self-knowledge or Brahma Gnana or Atma Gnana.  

The rituals and the sacrifices deal with lower knowledge meant for the ignorant populace. The seeker has to ignore these rituals and worships and seek for the truth of their true existence.  

Religious rituals and worships of beliefs are unsafe rafts for crossing the ocean of the dualistic illusion (the experience of the birth, life, death, and the world). Doomed to shipwreck are those who try to cross the Ocean of the dualistic illusion on these poor rafts. Ignorant of their own ignorance, yet wise in their own esteem, these deluded people proud of their vain learning go round and round like the blind led by the blind.

Rig Veda:~The Vedas exclaim from time immemorial, Ekam Sat Vipra Bahudha Vadanti, Existence is One, Sages call it by different Names. - 1-164-146.

Rig Veda: ~ The Atman (Soul or Spirit) 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)

Thus, it refers to a 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 imaginations based on the false self. Thus Atman or Soul, the Self is God in truth.

The Vedas do not talk about idol worship. In fact, until about 2000 years ago followers of Vedism never worshipped idols. Idol worship was started by the followers of Buddhism and Jains. There is logic to idol worship. Vedas speak of one God that is the supreme self i.e. Atman or Soul but Hinduism indulges in worshiping 60 million Gods.

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

God in truth is the Atman, the Self. Atman is present in the form of consciousness.

Do not accept any other God other than Atman not worship other than Atman.

Let these words be inscribed in your subconscious.

Nothing is real but God. Nothing Matters but love for God in truth. God in truth is everywhere and in everything.

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

Vedas declare: ~ One should never accept another God in place of the Atman nor worship other than the Atman. If one, worships any other God in place of Atman, are enveloped in still greater darkness, in other words, they are extremely foolish, fall into an awful hell of pain and sorrow, and suffer terribly for a long time."

So, it clearly indicates the so-called Gods worshipped in the temples today are not Vedic Gods.  Vedas bars worshiping such Gods. 

Yajurveda says: ~

Translation 1.

They enter darkness, those who worship natural things (for example air, water, sun, moon, animals, fire, stone, etc).

They sink deeper into darkness those who worship sambhuti. (Sambhuti means created things, for example, table, chair, idol, etc.) (Yajurved 40:9)

Translation 2.

"Deep into the shade of blinding gloom fall asambhuti's worshippers. They sink to darkness deeper yet who on Sambhuti are intent." (Yajurveda Samhita by Ralph T. H. Giffith pg 538)

 Translation 3.

"They are enveloped in darkness, in other words, are steeped in ignorance and sunk in the greatest depths of misery who worship the uncreated, eternal prakrti -- the material cause of the world -- in place of the All-pervading God, But those who worship visible things born of the prakrti, such as the earth, trees, bodies (human and the like) in place of God are enveloped in still greater darkness, in other words, they are extremely foolish, fall into an awful hell of pain and sorrow, and suffer terribly for a long time." (Yajur Veda 40:9.)

So, Yajur Veda indicates that:~

They sink deeper into darkness those who worship Sambhuti. (Sambhuti means created things, for example, table, chair, idol, etc.  (Yajur Veda 40:9)

Those who worship visible things born of the prakrti, such as the earth, trees, and bodies (human and the like) in place of God are enveloped in still greater darkness, in other words, they are extremely foolish, fall into an awful hell of pain and sorrow, and suffer terribly for a long time." (Yajur Veda 40:9.)

When the religion of the Veda knows no idols then why so many Gods and Goddesses with different forms and names are being propagated as Vedic Gods. Why these conceptual Gods are introduced when the Vedic concept of God is free from form and attributes.

God lies beyond the illusory experience of duality because it is prior to any experience.

The Soul, the  Self, is in the form of the Spirit (consciousness) and is the ultimate truth and it is God in truth. :~Santthosh Kumaar