The Advaitic wisdom of Sage Sankara reveals both the real and the unreal nature of existence.
The universe is both real and unreal. It is real because it is a manifestation of consciousness, but is unreal, in the sense, that it is not absolute and eternal like consciousness itself.
People's approach is more practical, and they stuck with the reality of the universe, they take the universe as real. That is why all the confusion.
The look of an object will depend upon the medium through which the observer views it. In fact, our mental and intellectual conditions determine the universe, which confronts us, observed, and experienced. The commoner viewing the world will see differently from a Gnani viewing the same world. Each one interprets the world that they see in terms of their existing knowledge. The commoner sees everything based on the ego and therefore experiences birth, life, death, and the universe as a reality, whereas a Gnani sees everything as consciousness and he is fully aware of the fact that, there is no second thing that exists other than the Soul or consciousness.
Thus, all the egocentric knowledge has to be bifurcated to realize the ultimate truth, which is beyond form, time, and space.
The universe in which we exist is nothing but an illusion created out of the Soul, which is present in the form of consciousness.
The whole universe is nothing but the Soul. Therefore, there is no second thing that exists other than the Soul, which is present in the form of consciousness.
It is not as if something that was not consciousness suddenly becomes consciousness. Rather, "knowing the truth” means the removal of ignorance about one's own existence as consciousness. Thus, to "know the truth” is to "be consciousness."
Consciousness is ever-present. Without consciousness, the universe, in which you exist ceases to exist. Consciousness is Self-evident. It is not established by extraneous proofs. It is not possible to deny consciousness, because it is the very essence of the one who denies it.
Consciousness is the basis of all kinds of knowledge, presuppositions, and proofs. Consciousness is everything. Thus, consciousness is the ultimate truth or Brahman or God in truth. : ~ Santthosh Kumaar