Aloha, Kolya3!
It is difficult to try and relate in words - it really is the kind of thing you just need to experience. Rather like trying to explain the taste of vanilla ice cream. My experience was something like this:
discomfort, billions of thoughts, wait, do i always have this many thoughts, oh yeah, i need to be watching my breath, etc, etc, etc, days pass along the same lines, intense light/energy, no thought, pure experience of what seems like our original state, back to thinking - OMG, can i stay here forever? reluctant return to daily life
That is a very poor substitute for what actually happened - it bears almost no semblance whatsoever to the experience.