Acharya Prashant addresses a question regarding the nature of bliss experienced during stillness and the state of the self in deep sleep. He explains that the deep joy one feels while sitting still is not true bliss because it is still an experience observed by a knower. True bliss, he asserts, is the absence of all states and the absence of the 'experiencer' who moves between states. He describes deep sleep as the closest reference to samadhi because, in that state, the knower is absent. While sleep is temporary and subject to being woken by external alarms, samadhi is a state of permanent internal contentment where one is beyond the reach of external disturbances.