Why go round and round, by various tortuous paths

When the Vedas and Upanishads declare that Consciousness or Atman is actually nothing but Brahman, then why go round and round, by various tortuous paths, like the blind led by the blind. One has to realize the fact that, the mind is in form of universe.  Trace the source of mind and realize that source is consciousness. The mind rises from consciousness as waking or dream and subsides as deep sleep.  

In Mandukya Upanishad Brahman and Atman are defined as same:

Mandukya Upanishad, verse-2:-

All indeed is this Brahman; This Atman is Brahman; He, this Atman has four steps/quarters.

While Brahman lies behind the sum total of the objective universe, some human minds boggle at any attempt to explain it with only the tools provided by reason. Brahman is beyond the senses, beyond the mind, beyond intelligence, beyond imagination. Indeed, the highest idea is that Brahman is beyond both existence and non-existence, transcending and including time, causation and space, and thus can never be known in the same material sense as one traditionally 'understands' a given concept or object.

Imagine a person who is blind from birth and has not seen anything. Is it possible for us to explain to him the meaning of the colour red. Is any amount of thinking or reasoning on his part ever going to make him understand the sensation of the colour red? In a similar fashion the idea of Brahman cannot be explained or understood through material reasoning or any form of human communication. Brahman is like the colour red; those who can sense it cannot explain or argue with those who have never sensed it.

Brahman is considered the all-pervading consciousness which is the basis of all the animate and inanimate entities and material. (brahmano hi pratisthaham, Bhagavad Gita 14.27)

In Advaita Vedanta: - Brahman is without attributes and strictly impersonal. It can be best described as infinite Being, infinite Consciousness and infinite Bliss. It is pure knowledge itself, similar to a source of infinite radiance. Since the Advaitins regard Brahman to be the Ultimate Truth, so in comparison to Brahman, every other thing, including the material world, its distinctness, the individuality of the living creatures and even Ishvara (the Supreme Lord) itself are all untrue. Brahman is the effulgent cause of everything that exists and can possibly exist. Since it is beyond human comprehension, it is without any attributes, for assigning attributes to it would be distorting the true nature of Brahman. Advaitins believe in the existence of both Saguna Brahman and Nirguna Brahman; however they consider Nirguna Brahman to be the absolute supreme truth. 

Atman is Brahman. Brahman  or Christ or the Absolute is alone real; this waking is unreal; and the three states are non-different from Brahman or Christ. 

Whatever is, is Brahman or Christ. Brahman or Christ itself is absolutely homogeneous. All difference and plurality are illusory."  Brahman or Christ is not a person, as the Absolute is not this. But if one wants to call it God or Paramataman, then fine. But it is not a person. Personifying it can make it easier to understand.