Sigmund Freud and his school of psychologists have contributed many great insights.
One of them is that man's whole search for paradise, or a heaven, or the kingdom of God, or nirvana is nothing but the search for the mother's womb.
Those beautiful nine months without any responsibility … not even the responsibility to breathe — the mother was breathing for you — not even the responsibility to bother about your food.
No question of past, no question of future, just the present moment and everything is available.
Before the child asks, everything is available to the child.
Sigmund Freud feels that those nine months have remained in the unconscious and they are creating the urge to find those golden moments again. Certainly you cannot enter the mother's womb again.
But he has a great idea and great insight.
You can enter into the womb of the whole existence.
Nirvana and the kingdom of God are nothing other than entering into the womb of existence itself where no responsibility, no burden, no fear, no death … but only a pure, eternal dance of blissfulness.
OSHO