A man who is afraid of death will be afraid of life also, because life brings death. If you are afraid of the enemy and you close your door, the friend will also be prohibited.
If people become ecstatic the whole society will have to change, because this society is based on misery. If people are blissful you cannot lead them to war -- to Vietnam, or to Egypt, or to Israel. No. Someone who is blissful will just laugh and say: This is nonsense!
Existence is a mystery, and one should accept it as a mystery and not pretend to have any explanation. No, explanation is not needed — only exclamation, a wondering heart, awakened, surprised, feeling the mystery of life each moment. Then, and only then, you know what truth is. And truth liberates.