That post discusses one interpretation of Spinoza’s notion of immortality. The basic idea is that the entire universe exists in a timeless sense “from the standpoint of eternity”, and the entire universe is the way it is necessarily. Hence, every part of the universe, including ourselves, exists eternally in the universe. Because the universe is necessarily the way it is, no part of it can ever not exist.
Sorry just to throw a link at you, but here is a link :)
http://kvond.wordpress.com/2008/07/03/spinoza-on-the-immortality-of-the-soul/
That post discusses one interpretation of Spinoza’s notion of immortality. The basic idea is that the entire universe exists in a timeless sense “from the standpoint of eternity”, and the entire universe is the way it is necessarily. Hence, every part of the universe, including ourselves, exists eternally in the universe. Because the universe is necessarily the way it is, no part of it can ever not exist.