This vast cosmos with all its contents (atom, molecule, sun, moon, planet, and star) was all created out of consciousness. +

People think something will happen, and they will vanish. No such thing happens. Noting that will shrink down to the size of an atom that contains the whole universe. 

To think there is an atom, a thinker has to be present. If a thinker has to be present, the world has to be present. The world implies duality.

No one has seen the universe in the atom. It is just imagination based on the false self within the false experience.

The first thing the seeker has to realize he, himself, is not the Self because the Self is not limited to the form (you), but it pervades time and space also. When the Self is not you, then all these theories are based on the form holding no water

The Self is the invisible Soul, which is a formless, timeless, and spaceless existence. If the Self is the invisible Soul, which is is formless, timeless, and spaceless existence, then what is the use of talking about the atom or the universe or you? 

Sri Ramanuja believed in a plurality of minds or selves and also in prakrti matter. The latter he thought, ultimately existed in the form of particles similar to our atomic theory. But recent science has killed the atomic theory, and matter has vanished with it. Hence, modern Ramanujists fear science and try to avoid it.

This vast cosmos with all its contents (atom, molecule, sun, moon, planet, and star) was all created out of a single stuff. That single stuff is the invisible Soul, which is present in the form of consciousness.

Knowledge of the single stuff is Self-knowledge or Brahma Gnana or Atma Gnana.

Thus, one has to conclude the Self is free from form, time, and space. If there is no form, time, and space, then there is no universe. If there is no universe, then there is no duality. If there is no duality, there is only non-duality. 

A perfect understanding of ‘what is what’ is very much necessary to realize the ultimate truth or Brahman. 

Without realizing that form, time, and space are one in essence, one will not be able to acquire Self-knowledge or Brahma Gnana, or Atma Gnana. Nothing vanishes when wisdom dawns; wisdom dawns in the midst of duality.

Advaita only means negation of duality. The soul, which is present in the form of consciousness, is the ultimate truth or Brahman or God in truth. 

Consciousness is the cause of the origin, maintenance, and withdrawal of the universe is Advaita (i.e., non-dual), which means that consciousness transcends all conceptions, positive and negative. Nothing positive can ever be imagined or said about it.

Consciousness is existence absolute, awareness absolute. The existence absolute means that consciousness is not unreal or non-existent. And it is not unconsciousness. Nothing positive can be stated about consciousness.

In one of the Upanishads, the disciple says to the Master: "Lord, tell me the nature of Atman". The reacher remains silent. Again, the question is asked, and again, the answer is silence. By his silence, the teacher indicated that the nature of Atman is inexplicable, indescribable, and unimaginable.

The  Soul, the Self, is the One without a second. There is not the least shadow of multiplicity in the soul, which is present in the form of consciousness.-:~Santthosh Kumaar