Guruji, it is said that the intellect, memory and ego are changing spontaneously. Everything is undergoing spontaneous change and we are nowhere in the picture. So who is to be liberated and who is bound?
Yes, all these are changing, but who is realizing that all these are changing? It is the soul, who is a witness.
When one identifies with these aspects they become bound. But once you realize that everything keeps changing around me, but I am not changing - 'I am not this, I am the witness of this' - then liberation is achieved.