Ashtavakra Gita:~ Know the Soul, the innermost Self to be One and in this way enter into the state of dissolution.+

Brihadaranyaka Upanishad: ~ Brahman (God) is present in the form of the Athma, and it is indeed Athma itself.

The Soul is the Self. The Soul is present in the form of consciousness.  Consciousness is the ultimate truth or Brahman. Ultimate truth or Brahman is God. Realize that to be Brahman which is Existence, Knowledge and Bliss Absolute, which is nondual and infinite, eternal and One and which fills all that exists.

 After the realization of Advaitic truth, the attainment of which leaves nothing more to be attained, the pure blessedness, and the Knowledge after which nothing needs to be known. When seen, there is nothing more to be seen.  

The experience of birth, life, death, and the world is made of single stuff. That single stuff is consciousness. Self-knowledge makes you realize the experience of birth, life, death, and the world is merely an illusion.

Consciousness pervades everything and everywhere in all three states. Consciousness illumines the whole universe that includes the Sun, Moon, and the whole galaxy.

The consciousness pervades the entire universe outwardly and shines of itself, as the fire that permeates a red-hot iron ball both inwardly and outwardly shines of itself. There exists nothing that is not consciousness. 

People perform all their actions in and through consciousness, but they are ignorant of the Soul, the Self, not being consciousness is merely an illusion. From illusion springs separation wherein the experience of birth, life, death, and the world have roots. 

Ashtavakra Gita:~ The universe rises from the Soul, the 'Self' like bubbles from the sea. Thus, know the Soul, the Self to be One and in this way enter into the state of dissolution."

For the Gnani who realizes everything as consciousness, what is there to meditate or not to meditate, what to speak or not to speak, what to do or not to do? Those who give up the highest and purest Brahmic consciousness live in vain and though human, are like beasts. Having turned visible into the invisible, one should realize everything to be consciousness itself.

A  Gnani always dwells in Advaitic awareness. The ever-existent Soul or consciousness shining within the three states can be realized only through Self -knowledge or Brahma Gnana or Atma Gnana.  

The Self indeed is this Soul, which is present in the form of consciousness, not the phenomenal universe which is present in the form of the mind.

Sage Goudpada:~ The non-dual Atman is realized when the individual Self  (Jiva) is awakened from its ignorance. Atman is unborn, dreamless, sleepless, and motionless, and is beyond duality. It is cognition at its purest. It is Brahman- Ayam Atma Brahma, this Atma is that Brahma; Thus, epitomizing the core of Upanishad teachings. :~Santthosh Kumaar