When the nondual real nature of the ‘I’ is exposed through Advaitic wisdom, then it is called Moksha.+

Religious orthodox think that through their good karma and performing rituals, they get moksha.

There are two kinds of audiences - the ordinary ones who desire the transitory heaven and other pleasures obtained as a result of ritual sacrifices, and the most advanced seeker who seeks to know the truth beyond form, time, and space. 

The religious orthodoxy is meant for the first audience, to help lead its followers along the way. The Atmic path, with emphasis on Advaitic wisdom, is meant for those who wish to go beyond such transient pleasures.

Although Sage Sankara puts the mystic goal highest in his mystical books, he is careful to say that this goal leads to Brahman, not that it is realization.

That is why Sage Sankara: ~ VC- Let erudite scholars quote all the scripture, let Gods be invoked through sacrifices, let elaborate rituals be performed, let personal Gods be propitiated---yet, without the realization of one‘s identity with the Self, there shall be no liberation for the individual, not even in the lifetimes of a hundred Brahmas put together (verses-6)

In the Advaita perspective, moksha is synonymous with the invisible Soul, which is present in the form of consciousness (Brahman)

Sruti says "brahmavit brahmaiva Bhavati" ~ He who knows Brahman (Soul) becomes Brahman (Soul) Itself.

The real Moksha is freedom from the ‘I’. The ‘I’ is the cause of ignorance. Ignorance is the cause of experiencing the dualistic illusion as reality.

The dualistic illusion is present in the form of the ‘I’.

The ‘I’ is present in the form of the mind.

The mind is present in the form of form, time, and space.

The form, time, and space are present in the form of the universe.

The universe appears as the waking or dream.

The individual experiences of birth, life, death, and the world are happening within the waking experience.

But remember:~

The ‘I’ disappears in deep sleep.

There is no mind without the ‘I’

There is no form, time, and  space without the ‘I’

There is no universe without the ‘I’.

There is waking without the ‘I’

There is only the invisible and unborn   Soul, the witness of the ‘I’.

When the nondual real nature of the ‘I’ is exposed through Advaitic wisdom, then it is called Moksha. : ~Santthosh Kumaar