Plotinus - Eighth Tractate - On emotion and will
Type of Spiritual Experience
Here the argument is that we don't have free will because we are subject to unconscious or subconscious desires and emotions - not that we are in some way 'controlled' by higher powers
A description of the experience
Plotinus – Eighth Tractate – On Free will and the will of the One
Does the soul advance any reasoning which is free from emotion, and can a compelling imagination, an appetite drawing us where it will, be supposed to leave us masters in the ensuing act? How can we be masters when we are compelled?