On rebirth.

From U. Thittila's translation of the Vibhanga, "According to the teaching expounded by the Buddha, beings, so-called, no matter to which plane of existence they belong, are not possessed of any permanent identity, indiviuality, self, soul or spirit, but are to be considered only as temporary manifestations of several constituents or aggregates which in themselves though constantly changing nevertheless show continuity of process. Thus, although the expression 'rebirth' is frequently used, it is not to be understood that the same being from one existence is reborn into a future existence by virtue of there being a soul or spirit as the factor providing inherent continuity. It is that, after a period during which a group of aggregates have exhibited their continuity of process in mutual association, they separate; and, according to their several qualities at the moment of separation, associate again with other appropriate aggregates to produce in a perfectly automatic way a new being, which, although having no direct relationship to its predecessor, by way of a permanent unchanging soul or spirit, is nevertheless the direct outcome of resultants of the activities of that predecessor, and so on."

From Bhikkhu Bodhi's exposition of the Upanisa Sutta (SN 12.23), "things are seen to arise, not from some intrinsic nature of their own, from necessity, chance or accident, but from their causal correlations with other things to which they are connected as part of the fixed order obtaining between phenomena. Each transient entity, emerging into the present out of the stream of events bearing down from the past, absorbs into itself the causal influx of the past, to which it must be responsive. During its phase of presence it exercises its own distinctive function with the support of its conditions, expressing thereby its own immediacy of being. And then, with the completion of its actuality, it is swept away by the universal impermanence to become itself a condition determinant of the future."

The Buddha, "Whatever causes and conditions there are for the arising of these aggregates, they, too, are impermanent." SN 22.7-9

May all beings be happy and free from suffering.