The Atman or Soul is above duality and non-duality. +

Nirguna (attributeless) is the nondual nature of the invisible Soul, the Self.

The Saguna (attributed) is the illusory nature of the mind, which is present in the form of the universe.

The invisible Soul is the knower of the Saguna (mind). The Saguna (mind or the universe) is merely an illusion, from the standpoint of the nirguna, which is the invisible Soul, the Self.

Thus, the Saguna (mind or world) is a myth from the standpoint of the nirguna, which is the invisible Soul, the Self.

The invisible Soul is the real Self and eternal identity. The nirguna (Soul) can remain with or without the Saguna (mind), whereas the Saguna (mind) is dependent on the Nirguna (Soul) for its existence

Nirguna and Saguna are classified only in duality. In nondual reality, there is neither the nirguna nor the saguna; everything is one. Therefore, the nirguna and the Saguna are one; in essence, that is the invisible Soul, which is present in the form of consciousness.

The Saguna is mind because when the mind is present, then all the attributes are present, and when the mind is absent, then the attributes are absent.

The Samadhi is the natural state of the invisible Soul, the Self. In the natural state, the attributes are non-existent, and in duality ( the mind), all the attributes are present.

Thus, the duality and nonduality are the nature of the invisible Soul, the Self. The duality and the nonduality are not some theory. The theoretical duality and nonduality have nothing to do with the ultimate truth or Brahman.

The world in which we exist is present in the form of objective awareness. The whole objective awareness is created out of a single stuff. That single stuff is the invisible Soul, which is present in the form of consciousness.

The knowledge of the single stuff is Self-knowledge or Brahma Gnana or Atma Gnana.

The dual (waking or dream) and nondual (deep sleep) experiences appear and disappear. The Soul is the witness of the coming and going, of the three states. All three states are made of a single stuff. That single stuff is the invisible Soul, which is present in the form of consciousness.

Thus, the single stuff alone is real and eternal, and the entire three states are merely an illusion created out of the Single stuff.

Realization of the single stuff, which is the invisible Soul, which is present in the form of consciousness, is Self-realization.

Until ignorance is there, the three states are experienced as a reality. Thus, it is very much necessary to realize that there is no second thing that exists other than the invisible Soul is present in the form of consciousness.

Remember:~

Maya and Brahman, Jagat (world) and Ishvara (creator), Guru (teacher) and Shishya (disciple), the holy rituals, traditions, the three worlds, the three bodies, and so forth are realities within the illusory duality.

This seeming duality is a hypothesis, not to establish duality, but to disprove it. Advaitic or non-dualistic truth has nothing to do with the illusory universe or Maya, which is dualistic.

The invisible Soul, the Self, which is present in the form of consciousness, is the ultimate truth or Brahman or God in truth.

Consciousness is neither dual nor non-dual. Some orthodox claim that Atman is dual, while others claim that Atman is non-dual; they do not know the ultimate truth.

The Atman or Soul is above duality and non-duality. The seeker has to realize that duality is a reality only from the standpoint of the waking entity or ego. The ego is part and parcel of the illusory universe or Maya.

One thinks that he is an individual separate from the world and the world that existed prior to him, and he is born in it afterward. Till this conviction is there, he will not be able to grasp the Advaitic or non-dualistic truth.:~Santthosh Kumaar