Enneads IV.7: Of the Immortality of the Soul: Polemic Against Materialism
Fourth Ennead, Book Seven
Is the Soul Immortal?
1. Are we immortal, or does all of us die? (Another possibility would be that) of the two parts of which we are composed, the one might be fated to be dissolved and perish, while the other, that constitutes our very personality, might subsist perpetually. These problems must be solved by a study of our nature.
The Body as the Instrument of the Soul
Man is not a simple being; he contains a soul and a body, which is united to this soul, either as tool, or in some other manner. This is how we must distinguish the soul from the body, and determine the nature and manner of existence (“being”) of each of them.