The New Horizon, different wording: J. Krishnamurti

There is no end to evolution. Enlightenment is the end of dualistic growth, but the beginning of a non-dual evolution... a peaceful, silent movement of energy which goes on becoming bigger and bigger and goes on losing its separateness from universal energy. It always remains individual, even though it is spread all over the universe.

That feeling cannot be expressed by "I" because "I" is just another way of saying "ego." Before enlightenment there was ego; ego can exist only in conflict. This state can be spoken of only as "am"-ness, without any "I." It is a very strange feeling: you are not, and yet you are. You are not your old self; you are no longer a self, but you have not lost the feeling of am-ness.

So the question of what happens to individuals when they dissolve into the universal.... They still remain individuals, but with no assertion of "I" in them...just a silent song of am-ness or isness.