One who does good rejoices in the two worlds, in this world and in the other. He rejoices more and more as he recalls his good deeds.
One who does evil suffers in the two worlds, in this world and in the other. “I have done wrong”: this thought torments him. And his torments increase still more as he follows the way which leads to the infernal world.
One who does good rejoices in the two worlds, in this world and in the other. “I have done good”: the thought rejoices him and his happiness increases more and more as he follows the way that leads to the celestial world.
It would almost seem from these texts that Buddhism accepts the idea of a hell and a heaven; but that is quite a superficial way of understanding; for, in a deeper sense, this was not the thought of the Buddha. The idea on which he always insisted is that you create, by your conduct and the state of your consciousness, the world in which you live. Everyone carries in himself the world in which he lives and in which he will continue to live even when he loses his body, because, according to the Buddha’s teaching, there is, so to say, no difference between life in the body and life outside the body.
Some persons believe, some traditions teach that to leave the body is a blessing and that all difficulties disappear, provided, however, you fulfil certain rites, as in some religions, and that is also why so much importance is given to the religious rites which are, as it were, a passport for going to a happier region once you have left the body. Some even imagine that as soon as you leave the body you at once leave your miseries behind; but it is far from being true and this is what the Dhammapada points out here: what it calls the infernal world consists of psychological ranges, particular states of consciousness you enter when you do wrong, that is to say, when you stray away from all that is beautiful, pure, happy and you live in ugliness and wickedness. Nothing is more disheartening than to live in an atmosphere of wickedness.
[The Mother: CWM 3]