Nature of body experience

Nature of body experience is pleasurable at first but painful afterwards.

When the body is young the world experience is pleasurable. As it gets older the world experience becomes painful. This is obvious to people of all ages.

On acts that are motivated by rajas, the same characterization is described.

Recall BG 18.38

विशयेन्द्रियसंयोगाद्यत्तदग्रेऽमृतोपमम् ।

परिणामे विषमिव तत्सुखं राजसं स्मृतम् ॥ १८.३८

vishayendriyasamyogad yattadagre amRtopamam

pariName viShamiva tatsukham rAjasam smRtam

That pleasure which arises from the contact of the sense organ with the object, at first like nectar,

In the end like poison, that is declared to be rAjasic.

So the very body experience is like nectar at first but like poison afterwards.

So descent of consciousness into gross form of body is a rAjasic action.

Its reversal through awakening kuNDalini and moving her upward through suShumnA is painful at first but nectar-like later.

Recall BG 18.37

यत्तदग्रे विषमिव परिणामेऽमृतमोपमम् ।

तत्सुखं सात्त्विकं प्रोक्तमात्मबुद्धिप्रसादजम् ॥ १८.३७

That which is like poison at first, like nectar at the end,

that pleasure is declared to be sAttvic, born of the tranquillity of one's own buddhi.