Originally posted by shade343:
When a buddha or a God comes down to this earth, he is said to undergo reincarnation. Not rebirth. Rebirth are meant for ordinary souls who come down to this earth again with no memories of their past life.
Rebirth and reincarnation is 2 different things, although they have often been used interchangebly.
Hmm... interesting explanation.
However in Buddhism, strictly speaking we do not speak of 'reincarnation' but more of 'rebirth'. Reason being 'reincarnation' believes that a soul or a self gets reincarnated... but actually there is no entity called the 'self' which is undergoing change or incarnation. So the difference between 'rebirth' and 'reincarnation' is more at the 'technical level'... on the teaching of Anatta (no-self). Conventionally rebirth & reincarnation appears to be the same concept.. therefore I may use the term of of reincarnation or rebirth interchangeably.
When a person attains enlightenment, at least the Arhat level - he is totally freed from the bondange of samsara and afflictions. Meaning he no longer gets reborned because of his wholesome or unwholesome karma, or out of ignorance, attachment, defilements, etc etc. For a Buddha, he may get 'incarnated' again according to the Lotus Sutra Chapter 16 - Lifespan of the Tathagatha (see
http://web.mit.edu/stclair/www/Lotus16.html). This is because of his Great Compassion. He gets 'incarnated' to save sentient beings like us. So although he appeared to enter Parinirvana, in reality he did not enter Parinirvana and still dwells within our trichiliocosm*. He may be teaching in another planet within our trichiliocosm now and has to wait until the next Buddha, Maitreya Buddha, takes over.
*updated: sinweiy corrected me that 'san qian da qian shi jie' should be translated as 'trichiliocosm' and not '3000 world system' as it contains three kinds of thousands rather 3000 world altogether, equivalent to 1, 000, 000, 000 small worlds.