From saṃyama on the relationship between body and space, and from absorption in the lightness of cotton, arises travel through space.

Kāya is body. Ākāśa is space. Laghu is light. Tūla is cotton. Samāpatti is absorption. Gamana is movement, travel.

This sutra describes levitation or aerial travel. It requires two things: understanding the body-space relationship, and absorbing the quality of lightness.

The body seems solid and heavy. But it is composed mainly of space. By meditating on this reality, density becomes relative.

Additionally, through samāpatti on something light like cotton, the yogī assumes that quality.

The result is the ability to move through the air, defying apparent gravity.

Some interpret this as travel in the subtle body, astral projection. Others take it as literal physical levitation.

Either way, the principle is the same: the body is not as fixed as it seems. The mind that perceives it as heavy makes it heavy.

The inner space of the body can align with outer space.