Unreality can both consist in being absent in, on the one hand, possibilities, on the other hand, in necessities

If you say, that it is impossible to change human beings, who have been as they are through thousands of years, you have already blocked for yourself, you will not go ahead, you will not ask and investigate. But of course, it can also be problematic purely and simply to say, that it is possible, so that you only live in the world of possibilities, and not in the world of facts.

Unreality can both consist in being absent in, on the one hand, possibilities, on the other hand, in necessities.

In relation to possibilities, and what you are, unreality consists in absence from the given, for instance that you deny, or expel, the conditions of existence, wrapping yourself in illusions, in idealizing or romanticizing life.

In relation to necessities unreality consists in absence from that which could be different, for instance a denial of potentials.

Possibility without necessity leads out in the world of fantasy. Necessity without possibility, or necessity, which spoils possibilities, leads to, for instance, fatalism, philistine narrow-mindedness. 

All this leads the reluctant pilgrim to the labyrinth and the tortuous path with the shadowside and the dragons of dissapointment.