The objective world is not a creation of the mind because the objective world itself is the mind. Thus, without knowing:~
‘What is the substance of the mind?
‘What is the source of the mind? ~ it is difficult to understand, assimilate Self-knowledge or Brahma Gnana, or Atma Gnana.
The seeker has to know: whether the physical body and the world are within the mind or the mind is within the physical body?
The mind, physical body, ego, and the world are present only when the whole experience of waking is present. And the mind is absent when the waking experience is absent. Thus, one has to conclude that the mind as the whole waking experience. Thus, the mind appears as the waking experience (duality) and disappears as deep sleep (nonduality).
All your arguments are true only on the base of the ego, which is the false Self, within the false experience (waking). The individual experiences within the waking state are as real as a dream.
Suppose the same subject, if we are discussing in the dream and one asks me the same questions in the dream, then whatever he said in the dream becomes unreal, when the waking takes place. Whatever one says now, he is saying within the waking experience.
The waking is unreal on the base of the formless witness, which is the Atman. Atman is present in the form the consciousness.
How does one see various objects, scenes, and persons during dreams? If the dream is experienced without the physical body, then what is it that experiences the dream? Therefore, there must be a formless witness (knower) of the dream world.
This formless witness is the same witness that witnessed this Waking experience also. Therefore, the Waking experience and dream both are witnessed by one and only the witness of which the seeker is not aware. Since he considers the physical body (I) as the Self or witness and views and judges the world-view from the standpoint of the false self, within the false experience.
The formless witness can exist with or without waking or dream. But the waking or the dream ceases to exist, without the formless witness (Soul).
The gross waking experience is merged into the mental experience in the sense that, when it is analyzed, it is found to exist inseparably in and as the mind alone.
All "spiritual" planes are really mental: those who regard them as different or higher are deceiving themselves. The dream becomes unreal when the waking takes place; similarly, the waking becomes unreal when the Advaitic wisdom dawns. Therefore, everything has to be grasped mentally, not argued from the intellectual point of view, which is limited to the false physical entity within the false experience.
The unreal is created out of the real, and when one views and judges the standpoint of the unreal (ego), then there is duality.
When one can view and judge from the standpoint of the invisible Soul, the Self, then there is only non-duality. When Advaitic wisdom dawns, then there is neither duality nor nonduality, only reality.
All these confusions will go on until the man thinks he is an individual and apart from the world, and the world existed prior to him, and he is born in it afterward. Therefore, it is necessary to realize that the true Self is not the ego; the true Self is the invisible Soul.
The seeker has to learn to view and judge the world-view from the standpoint of the ego, and one has to view and judge on the invisible Soul, the real Self, to realize that the world, along with man, is an illusion.
The formless substance from which the illusion is created is Atman (Soul). Thus, the Atman is Brahman (ultimate reality).
Thus, no second thing exists from the standpoint of Atman as the Self.
Thus, there is neither experience nor the experiencer in non-dual reality, but only Atmic-awareness. :~Santthosh Kumaar