Yes, it is true that it is something that is not usually talked about and should be.
As mentioned before, a person attaining to the State of Enlightenment is shown the pinnacle of achievement; he “lets go” to the point where he realizes there is no thing, no sense of self. He could not function in that State, though it would be nice to stay there, of course.
He has to come back to “reality” (not really of course – an illusion).
Is it possible to go back and revisit that State? Yes, theoretically, but not practically. When you reach Enlightenment it is like a balloon popping. You suddenly realize there is One Thing and no separation. The balloon, once popped cannot pop again.
You can go back to the bliss (of which there are many levels) of the Oneness, but you cannot be Enlightened again.
Where Enlightenment is concerned, people are very cautious as to talking about it to others, as they feel they may be judged. Have they really done it? When the balloon has popped so to speak, they claim Enlightenment and the realizations come.
You must understand when a person reaches Enlightenment it is with true and utter belief that he has reached the pinnacle of the endeavours of a true seeker. So to tell him that he hasn’t reached the end, he would not be pleased.
Because in Truth, he has reached the goal of Mankind; in other words, the Truth that can be achieved while in a physical body. But because of this he can only find his way of Meditating depending on the level of concentration and just sheer love of Meditation that he has.
There is no judgement in the level of Meditation that the Adept does. But it is important that it is regular, every day, so that he keeps his attention and mind towards Spirit, as well as the material things that he has to deal with. He needs a balance between his Spiritual and Earthly life.