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.

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:-

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.

BG:-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.

There are certain principles which are common to all orthodox Hindu thought, that are taken for granted.  Orthodox assumes that the doctrine of karma is valid because they accept the experience of birth, life, death and the world as reality.

Kabir views humanity as being caught up in illusion, searching for Ultimate Reality in all the wrong places, always seeking It outside of ourselves in various rituals, temples, forests and mountaintops, not realizing That for which we seek is already hidden within us. 

 Without the self-knowledge or brahma Gnana or Atma Gnana it is impossible to cross the illusory ocean of the pain and pleasure.  There no vessel to ferry man across the ocean of illusory form, time and space except Gnana.  

What is Gnana? Gnana means the full and firm realization of truth – a realization beyond all doubts, change and contradiction. 

Neither the control of breath, or regulating the breath, nor the performance of selfless service, nor by devotion to gods and gurus, not the performance of penance, nor pilgrimaging, nor by yoga nor by scriptural mastery, the ignorance will not vanish. But only   through non-dual wisdom the ignorance can be eradicated.  The three states are state of ignorance. All the three states are falsehood. The formless substance and and eternal.  witness of the three states is real and eternal. 

 Sri Sankara, in Bhaja Govindam says: - [Jnana Viheena Sarva Mathena Bajathi na Muktim janma Shatena] - one without knowledge does not obtain liberation even in a hundred births, no matter which religious faith he follows.

  FORMLESS PATH