I think that the experience is very unique for each person, so I will not get into that.
I think the main idea is that the sensory deprivation exposes how your brain works, to yourself.
It is very scientifical because it is all about leaving your mind empty and observing what happens.
This is where the experiences differ.
However, it is almost like a physical training on controlling your brain, of empowering you on what you think and how you think it.
We were about 60 people when I did it, only 1 left before the end, only one other said at the end that he did not find it very useful.
For me it was life changing, I must also say that when I found out that something like this existed, my first thought was “I have to do this”
It is like an association and they have centers all over the world. You have to request to join a program, if they accept you, they provide lodging and food. It is free but they ask for donations.
I don’t recommend to do it at home, it is all about the immersive experience.
I don’t know about the science of it but it is brutally simple. There is very little philosophy to it.