From Guru Vachaka Kovai verse 1105:

1105. The Jnani, the unchanging one, who is sleeping naturally within the body, does not know His activities [vyavahara] in the world, His absorption [nishtha] and His sleep, just as one who is sleeping in the cart does not know the moving of the cart, its standing still and its lying [with the bullocks unyoked].

The above verse by Sri Muruganar was rewritten by Sri Bhagavan in the form of the following verse, which is also included in Ulladu Narpadu – Anubandham as verse 31:

B21. To the knower of the reality [mey-jnani], who is asleep within the fleshy body, which is [like] a cart, His activities [in waking and in dream], His absorption [nishtha] and His sleep are similar to the moving of the cart, its standing still and the cart being unyoked, to one who is sleeping in the cart

Sri Sadhu Om: The bodily life of a Jnani appears to be real only from the perspective of others. So ignorant people [ajnanis] think, “This Jnani is performing activities here in the waking state.”

But since the Jnani is verily bodiless, He does not know those activities; to Him the body and its activities are completely non-existent.

Just as the traveler who is sleeping in a bullock cart does not know the movement of the cart, and just as a sleeping child does not know that he is taking food, so also the Jnani does not know the state in which the body, the senses and the mind are active.

When the body, the senses and the mind of a Jnani remain without activities, people think, “This Jnani is in samadhi.” This is similar to the state where the oxen remain yoked to the cart but are motionless. Even this state of samadhi or nishtha is not known to the Jnani; for Him it is completely non-existent. When people think, “This Jnani is sleeping,” this state of apparent deep sleep in which his body, his senses and his mind seem to be unconscious, is similar to the cart that is with the unyoked oxen.

Just as the fact that the car is undone is not known to the traveler who sleeps in the car, so also the state of deep sleep is not known to the Jnani; for him this state it is completely non-existent.

Therefore, these three different states in the life of a Jnani seem to exist only under the erroneous perspective of the ajnanis, who see the bodiless Jnani as a body.

For the Jnani, the state of activity [wakefulness and sleep], the state of samadhi and the state of deep sleep do not really exist.

That is why Sri Bhagavan says in verse 31 of Ulladu Narpadu:

“Who can conceive and how what his [the Jnani’s] state is?”

~ above text is by Sri Sadhu Om in his commentary on Guru Vachaka Kovai verses 1105 and B21

For more on the same topic, please also see here:

How can the Jnani (sage) function with NO THOUGHTS? Sri Ramana Maharshi

Ramana Maharshi: how to abide as the Self, the world is not real, attend to yourself

Does the Sage (Jnani) see the world? Does the world appearance exist after liberation?

Multiplicity, plurality and polarity ARE duality | Non-duality | Sri Ramana Maharshi

The nature of liberation | Manonasa by Michael Langford | Ramana Maharshi | PDF download