People's claim of seeing and communing with GOD is merely a hallucination.+

GOD is not an individual because the GOD is ever nondual. God is ever nondual because God is formless, timeless, and spaceless existence. 

Thus, the people's claim of seeing and communing with GOD is merely a hallucination. They may be perfectly sane in other respects.

People who say they have seen GOD are hallucinating. Moreover,  they are cheating themselves because they have not examined what they have seen is really GOD. When the world in which they exist itself is a dualistic illusion then whatever they have seen within the dualistic illusion is bound to be an illusion.

People who say they have seen and communed with God, for none, can refute them. Hence, their privileged position in getting away with the hallucinated nonsense.

Vedas declares God cannot be seen directly by anyone. God pervades all beings and all directions. Thus, personal Gods do not find any support from the Vedas. Personal Gods are a myth propagated by religion. 

In Yajurveda – chapter- 32:~ God cannot be seen directly by anyone. God pervades all beings and all directions. Thus,   Idolatry does not find any support from the Vedas.

 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 Self. May ye never accept another God in place of the Atman nor worship other than the Atman?" (10:48, 5)

The Vedas talk about Brahman (GOD) which refers to the ultimate truth or ultimate reality. Consciousness is the ultimate truth, therefore, the consciousness is Brahman and Brahman is God in truth.

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

Vedas do not permit idol worship. All the idols are of the Puranic Gods Priests are referring to the Puranic Brahma as God they are ignorant of the God in Vedas even though they speak of Vedas.

Priests do not understand the meaning of the Brahman, which is present in the form of consciousness.

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, with no differentiation. Only Atman the real exists. 

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

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.

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

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. 

Mystics see visions of Gods and Goddesses and adepts according to their own inherited conditioning.

The seeker of truth should not start with the idea of God. The seeker does not know whether there is God or not. There is no proof. The seeker needs proof of God's existence.

One need not doubt that people saw Shiva, Jesus, etc. That they saw visions may be an undeniable fact. But the question is “Was what they saw the Truth?" They no doubt had such vision but they never stopped to inquire if their visions are true.

After years of effort glorifying the Christ when Christian closes his eyes and Christ comes to him.

After years of effort glorifying the Krishna when a Hindu closes his eyes and Krishna comes to him.

After years of effort glorifying the Buddha when a Buddhist closes his eyes and Buddha comes to him.

After years of effort glorifying the Mahavira when a Jain closes his eyes and Mahavira comes to him.

Christ doesn’t come to a Hindu; Mahavira doesn’t come to a Christian. Buddha doesn’t come to a Jain: only the image projected in the subconscious will come. The image became almost solid. It became so real from constant repetition, from continuous remembering, that it seemed projected deity was standing in from of him. No one was standing there.

Wherever is projected is merely an illusion created out of the consciousness. Any experience is possible only within the domain of the form, time, and space. Whatever belongs to the form, time and space are merely an illusion. The illusion is created out of single stuff and that single stuff is the consciousness. The knowledge of the single stuff is Self-knowledge or Brahma Gnana or Atma Gnana.

In reality, consciousness alone exists without the division of the form, time, and space. There is no second here, no other. From the standpoint of the Soul, the form, time, and space are merely an illusion.

The seeker has to take all the facts, and then proceed to examine and analyze, how far is it true?”

To talk of seeking God is as meaningless as saying "seeking dog". It is only a hollow word,.one must know God in truth.

Dualist Sages say: ~ God cannot exist without attributes. Then they are making God as an object whereas God is the subject. Attributes can only be seen in the objective world. Causality appears in the duality, but when one goes deeper into the matter even there the causality disappears

Who else but the ‘Self’ could have imagined the objective world? Ramanuja and Madva see God as the imaginer, but where is the proof. Nobody has seen God creating. You have seen no other creator, whether God or angel. The only ‘Self’ is left. Therefore ‘Self’ is the creator because imagining means creating. The Dvaita and Religionists talk nonsense. Has God meaning to you? Yes. It is an idea. What is an idea? The idea is an imagination. So God has no proved existence beyond that of an idea. :~Santthosh Kumaar