“It is the natural duty of souls to do their work in the body; are we to suppose that when once they leave the body they spend all eternity in idleness?”
XX. On Transmigration of Souls, and how Souls are said to migrate into brute beasts.
On the Gods and the Cosmos
Context: It is the natural duty of souls to do their work in the body; are we to suppose that when once they leave the body they spend all eternity in idleness? Again, if the souls did not again enter into bodies, they must either be infinite in number or God must constantly be making new ones. But there is nothing infinite in the world; for in a finite whole there cannot be an infinite part. Neither can others be made; for everything in which something new goes on being created, must be imperfect. And the world, being made by a perfect author, ought naturally to be perfect.
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Sallustius 56
Roman philosopher and writerRelated quotes

From, On Loving of God, Paul Halsall trans., Ch. 11

“The body sprang
At once to the height, and stayed; but the soul,—no!”
A Death in the Desert (1864)

7 - 10
Auxiliaries to the Perception of Intelligible Natures
Context: The soul is bound to the body by a conversion to the corporeal passions; and again liberated by becoming impassive to the body.
That which nature binds, nature also dissolves: and that which the soul binds, the soul likewise dissolves. Nature, indeed, bound the body to the soul; but the soul binds herself to the body. Nature, therefore, liberates the body from the soul; but the soul liberates herself from the body.
Hence there is a twofold death; the one, indeed, universally known, in which the body is liberated from the soul; but the other peculiar to philosophers, in which the soul is liberated from the body. Nor does the one entirely follow the other.
We do not understand similarly in all things, but in a manner adapted to the essence of each. For intellectual objects we understand intellectually; but those that pertain to soul rationally. We apprehend plants spermatically; but bodies idolically (i. e., as images); and that which is above all these, super-intellectually and super-essentially.

“We are being sucked into the body of eternity.”
Terrence McKenna's "2012 Eternity" video https://www.youtube.com/watch?v=QkSxKGkNs6M