When Jeeva gets detached to Prakrithi and Abhimanam, all Sukha(happiness) and Dukha (unhappiness) vanish too. Thus you experience the light and joy of your true Self.

Samadhi is different from sleep (Sushupthi). How? When you wake up from sleep, you are again entangled by Prakrithi due to passion. But when you wake up from Samadhi, you still remain liberated due to dispassion. Jeeva has become Easwara who is the master of Prakrithi.

This is explained as follows:

Whatever good or bad dreams you had in your sleep and however happy or unhappy you felt in the dream, as you wake up, your “Dream experiences” vanish. They can no longer affect you. Similarly, the Prakrithi that affected you in your ignorant state can not affect you in your liberated state. Prakrithi is no more capable to drag the “Atmarama” – the one who rejoices in the Self – into the cycle of births and deaths.

3.27.27 – 30

Here Lord Kapila concludes His advice, “until you become One with Lord, practise Sadhana and devotion that takes you to Him.