“Advaita” is a term used variously to express the unity of reality. Advaita is unity in diversity.+

Dattatreya's Song of the Avadhut:~Nonduality is taught by some; some others teach duality. They don't understand that the all-pervading Reality is beyond both duality and nonduality.

“Advaita” is a term used variously to express the unity of reality.  Advaita is unity in diversity.   The seeker has to begin by defining "What is real?" "What is unreal?,   to establish in Advaitic reality by sheer reasoning alone.   Reasoning is the right way to realize the truth, which is beyond form, time, and space. People must first know what is the truth? and what is untruth’. 

Sage Sankara’s wisdom is not teaching or philosophy but Advaita is universal wisdom. Advaitic wisdom is neither a teaching nor a theory but it is mere guidance to those who are seriously seeking the ultimate truth or Brahman or God in truth. Grasp the ultimate truth at any time, any age, if the seeker has the spiritual maturity and capacity to grasp it. 

Sage  Sankara says: ~ VC-47   All the effects of ignorance, root, and branch, are burnt down by the fire of knowledge, which arises from discrimination between these two—the Self and the not-Self.

It really depends on his inborn natural capacity to understand and assimilate it.  Sage Sri, Sankara’s wisdom is a Self-examiner, to test oneself to discover how near to Gnana he has approached and what progress has already been made on the path, and what still remains to be done.  It sets up a criterion for Self-judgement.   There are millions in search of truth but one in million will be able to grasp it.

People who have gained an intellectual understanding of nonduality have the wrong notion that they are already self-realized and there is nothing more there to be done than simply talk Advaita and enjoy the world around them.

The practical life is nothing to do with the Soul, the Self from the ultimate standpoint. The practical life has meaning only from the base of the false self (ego) within the false experience (waking).

Until one thinks of the birth entity as self, he is bound to believe the universe as reality. Without knowing the basis of how the universe is unreal, it is difficult to realize the Advaitic truth.

The seeker has to find for himself the truth of his true existence and to come to a fuller and deeper understanding and realization of the truth, which is hidden by the illusory form, time, and space.

Because of ignorance, the universe has arisen. The universe is a dualistic illusion. Without ignorance, the Soul, the Self, which is present in the form of consciousness alone shines as the ultimate truth or Brahman or God in truth.

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

Consciousness, the God is Self-evident. It is not established by extraneous proofs. It is not possible to deny God because God is the very essence of the one who denies God. God is the basis of all kinds of knowledge, presuppositions, and proofs.

Sage Sankara: ~ “VC~ All this universe which through ignorance appears as of diverse forms, is nothing else but Brahman (Consciousness) which is absolutely free from all the limitations of human thought.

The universe is the product of ignorance. The ignorance is present in the form of the ‘I’.

Sage Sankara says: - VC-47- All the effects of ignorance, root, and branch, are burnt down by the fire of knowledge, which arises from discrimination between these two—the Self and the non-Self.

Until you think you are an individual separate from the world and the world existed prior to you and you are born in it afterward the ignorance will prevail as a reality. Till ignorance is there the universe prevails as reality.

Sage  Sankara says: ~ “The exercise in discrimination between real and unreal and renunciation of the false is real meditation, then why you are indulging in other types of meditation.

Perfect understanding and realization of ‘what is what’ leads to Self-awareness. By holding onto theories one remains in the realm of duality.

You have to mentally go on dropping what is not the truth through deeper Self-search. Finally when you become aware of the fact that, your ego, your body, and the world are one in essence then there is Self-awareness in the midst of duality. : ~ Santthosh Kumaar