Schrödinger's wisdom

Consciousness is never experienced in the plural, only in the singular. Not only has none of us ever experienced more than one consciousness, but there is also no trace of circumstantial evidence of this ever happening anywhere in the world.

Vedanta teaches that consciousness is singular, all happenings are played out in one universal consciousness and there is no multiplicity of selves.

The plurality that we perceive is only an appearance; it is not real. Vedantic philosophy... has sought to clarify it by a number of analogies, one of the most attractive being the many-faceted crystal which, while showing hundreds of little pictures of what is in reality a single existent object, does not really multiply that object...

This life of yours which you are living is not merely a piece of this entire existence, but in a certain sense the whole; only this whole is not so constituted that it can be surveyed in one single glance.

Nirvana is a state of pure blissful knowledge... It has nothing to do with the individual. The ego or its separation is an illusion.

~ Erwin Schrödinger (12 August 1887 – 4 Jan 1961)

Swami Vivekananda's Vedanta

In one word, the ideal of Vedanta is to know man as he really is, and this is its message, that if you cannot worship your brother man, the manifested God, how can you worship a God who is unmanifested? (CW II.325-26)

If you are really pure, how do you see the impure? For what is within, is without. We cannot see impurity without having it inside ourselves. This is one of the practical sides of Vedanta, and I hope that we shall all try to carry it into our lives. (CW II.327)

Your godhead is the proof of God Himself. If you are not a prophet, there never has been anything true of God. If you are not God, there never was any God, and never will be. This, says Vedanta, is the ideal to follow. Every one of us will have to become a prophet, and you are that already. Only know it. Never think there is anything impossible for the soul. It is the greatest heresy to think so. If there is a sin, this is the only sin—to say that you are weak, or others are weak. (CW II.308)

The Vedanta says, there is nothing that is not God. ... The living God is within you, and yet you are building churches and temples and believing in all sorts of imaginary nonsense. The only God to worship is the soul in the human body. Of course all animals are temples too, but man is the highest, the Taj Mahal of temples. If I cannot worship in that, no other temple will be of any advantage. (CW II.321)

We can only believe in prophets if we ourselves become prophets

"In Vedanta the chief advantage is that it was not the work of one single man; and therefore, naturally, unlike Buddhism, or Christianity, or Mohammedanism, the prophet or teacher did not entirely swallow up or overshadow the principles. The principles live, and the prophets, as it were, form a secondary group, unknown to Vedanta. The Upanishads speak of no particular prophet, but they speak of various prophets and prophetesses. The old Hebrews had something of that idea; yet we find Moses occupying most of the space of the Hebrew literature. Of course I do not mean that it is bad that these prophets should take religious hold of a nation; but it certainly is very injurious if the whole field of principles is lost sight of. We can very much agree as to principles, but not very much as to persons. The persons appeal to our emotions; and the principles, to something higher, to our calm judgement. Principles must conquer in the long run, for that is the manhood of man. Emotions many times drag us down to the level of animals. Emotions have more connection with the senses than with the faculty of reason; and, therefore, when principles are entirely lost sight of and emotions prevail, religions degenerate into fanaticism and sectarianism. They are no better than party politics and such things. The most horribly ignorant notions will be taken up, and for these ideas thousands will be ready to cut the throats of their brethren. This is the reason that, though these great personalities and prophets are tremendous motive powers for good, at the same time their lives are altogether dangerous when they lead to the disregard of the principles they represent. That has always led to fanaticism, and has deluged the world in blood.

...

Now, if these prophets, as they say, were peculiar persons who alone had the right to catch a glimpse of that which is beyond and no one else has the right, we should not believe in these
prophets, because they are peculiar cases without any reference to a principle. We can only believe in them if we ourselves become prophets."

Swami Vivekananda,
The Complete Works of Swami Vivekananda, Vol 6,
THE METHODS AND PURPOSE OF RELIGION