literally “to be made flesh again”, is a doctrine or metaphysical belief that some essential part of a living being (in some variations only human beings) survives death to be reborn in a new body. This essential part is often referred to as the spirit or soul, the “higher” or “true” self, “divine spark”, or “I”. According to some beliefs, a new personality is developed during each life in the physical world, but some part of the self remains constant throughout the successive lives.
The (ca. 3rd century BCE) Chuang Tzu states: “Birth is not a beginning; death is not an end. There is existence without limitation; there is continuity without a starting-point. Existence without limitation is Space. Continuity without a starting point is Time. There is birth, there is death, there is issuing forth, there is entering in.”
Within one life and across multiple lives, the empirical, changing self not only objectively affects its surrounding external world, but also generates (consciously and unconsciously) its own subjective image of this world, which it then lives in as ‘reality’. It lives in a world of its own making in various ways. It “tunes in” to a particular level of consciousness (by meditation or the rebirth it attains through its karma) which has a particular range of objects – a world – available to it. It furthermore selectively notices from among such objects, and then processes what has been sensed to form a distorted interpretive model of reality: a model in which the ‘I am’ conceit is a crucial reference point. When nibbana is experienced, though, all such models are transcended: the world stops ‘in this fathom-long carcase’.[1]
http://en.wikipedia.org/wiki/Rebirth_(Buddhism)
Hammalawa Saddhatissa Mahathera writes: “There is no ’self’ that stands at the mentality to which characteristics and events accrue and from which they fall away, leaving it intact at death. The stream of consciousness, flowing through many lives, is as changing as a stream of water. This is the anatta doctrine of Buddhism as concerns the individual being.”[3]