Annihilation means, with the Buddhistical philosophy, only a dispersion of matter, in whatever form or semblance of form it may be; for everything that bears a shape was created, and thus must sooner or later perish, i.e., change that shape; therefore, as something temporary, though seeming to be permanent, it is but an illusion, Maya; for, as eternity has neither beginning nor end, the more or less prolonged duration of some particular form passes, as it were, like an instantaneous flash of lightning. Before we have the time to realize that we have seen it, it is gone and passed away for ever; hence, even our astral bodies, pure ether, are but illusions of matter, so long as they retain their terrestrial outline. The latter changes, says the Buddhist, according to the merits or demerits of the person during his lifetime, and this is metempsychosis. When the spiritual entity breaks loose for ever from every particle of matter, then only it enters upon the eternal and unchangeable Nirvana. He exists in spirit, in nothing; as a form, a shape, a semblance, he is completely annihilated, and thus will die no more, for spirit alone is no Maya, but the only REALITY in an illusionary universe of ever-passing forms.
Helena Petrovna Blavatsky