Rebirth, transmigration, metempsychosis or reincarnation, the entering of a soul after death upon a new cycle of existence in a new body either of human or animal form.
According to Caodaism, a human is composed of three components: a physical body, a mind and a soul. After death, the physical body is decomposed into different material substances. The mind, together with the soul, returns to Heaven, where one is judged based on what he has done in his entire life. His merits, if any, earn himself a heavenly status while his sins cause him to reincarnate for compensation.
Generally, humans are trapped by what is called the cycle of transmigration because they usually commit more sins than they can compensate.
To escape from the cycle of transmigration, one should get religion in order not to commit sins anymore. Besides he can earn more karmic merits for his higher heavenly status.