Advaita is universal. Advaita is not for Sale. Do not buy Advaita from the spiritual supermarket. Advaita is the nature of the Soul, the innermost Self. The world in which you exist is created out of single stuff. That single stuff is consciousness. Knowledge of the single stuff is Advaitic wisdom.
Advaitic truth is very simple, but it is very difficult to realize because you have accumulated mental garbage from different sources in the name of Advaita. Until you discard all the accumulated knowledge you will never be able to realize the Advaitic truth, which is beyond the form, time, and space.
The Advaita is the nature of the Soul, the innermost Self shines in its own its awareness when wisdom dawns.
The Advaita is the Soul is the cause and the support of all that exists as the world in which we exist.
The Advaita is present in the form of the consciousness. Advaita is the root element of the universe. From the Advaita, the universe comes into existence. In the Advaita the universe resides. And into the Advaita the universe is dissolved. The Advaita is the parent of all that is there is.
If the 'Self' is not ‘I’ but the 'Self' is the Soul then on the standpoint of the Soul, the innermost Self:
Where is the ‘I’?
Where is the ‘I’?
Where is the ego?
Where is the body?
Where is the mind?
Where is the world in which you exist?
Where is the form, time and space?
Where is the waking experience?
Where is the duality?
Where is void?
They are or have become one with the Soul which is present in the form of the consciousness. The consciousness is the ultimate truth or Brahman.
The ‘I’ is present only when the mind is present. The mind is present only when the world is present. The world is present only when there is waking experience.
Deeper self-search reveals the fact that, the waking experience is not considered different from the world. The world is not considered different from the mind. The mind is not considered different from the’ I’. This truth has to be assimilated.
The ‘I’ is mere an illusion created out of the Soul, which is present in the form of the consciousness. ‘I’ is not the subject. The ‘I’ is an object to the Soul, which is the formless, timeless and spaceless subject.
If the ‘I’ is an illusion then the world in which you exist is bound to be an illusion.
If the ‘I’ is an illusion then three states, are bound to be an illusion.
If the ‘I’ is an illusion then the form, time and space are bound to be an illusion.
If the 'I’ is an illusion then the individual experience of the birth, life, death is bound to be an illusion.
If the ‘I’ is an illusion then the words and thoughts are bound to be an illusion.
If the ‘I’ is an illusion then the duality is bound to be an illusion.
The seeker has to make sure what is this ‘I’ supposed to be? The seeker has to make sure the unreal nature of the ‘I’ which comes and goes.
That is why Bhagavad Gita: ~ The permanent is always there, only the transient ‘I’ comes and goes. (2.18)
The ‘I’ hides the truth of the whole.
People think the ‘I’ without the body is the Self. The seeker has to understand the fact that the fact that ‘I’ is not the Self, but the witness of the ‘I’ is the true Self, which is eternal.
That is why Ashtavakra Gita 16:10:~ If you desire liberation, but you still say "I," If you feel the ‘Self’ is the ‘I’, You are not a wise man or a seeker. You are simply a man who suffers.
People are stuck with the reality of the ‘I’, which they take it as real because some Gurus have propagated the Self is the ‘I’. is no need to convince such mind sets. The seeker of truth accepts only the truth nothing but the truth.
That is why Sage Sri, Sankara says: - VC-65. As a treasure hidden underground requires (for its extraction) competent instruction, excavation, the removal of stones and other such things lying above it and (finally) grasping, but never comes out by being (merely) called out by name, so the transparent Truth of the Self, which is hidden by Maya and its effects, is to be attained through the instructions of a knower of Brahman, followed by reflection, meditation and so forth, but not through perverted arguments.
People refuse to accept anything other than Their Gurus words. For them, their Gurus words are the ultimate truth. They do not accept anything else other than their accepted truth. There is no need to convince such mindset.
Such mindsets are not fit to acquire Self-knowledge or Brahma Gnana or Atma Gnana. The seekers of truth accept only the truth nothing but the uncontradictable truth.