This article, a word by word transcription of one of Osho's talks from 20-30 years ago is very enlightening. You will see what is between you and enlightenment. Also, the stories and jokes are wonderfully funny... Read it.
What happens to Human Consciousness when the people of the world suddenly realize they are in the midst of an unstoppable, devastating plague that will kill most of the people they know?
It depends on different people. For one who is absolutely conscious, nothing will happen; he will accept it, just as he has accepted everything else. There will be no struggles, no anxieties.
As he can accept his own death, he can accept the death of his planet too. And this acceptance is not in any way a kind of helplessness but on the contrary, just seeing the suchness of things -- that everything is born, lives and has to die.