Dispassion is not a single virtue, but is a name for all the virtues… dispassion is the union of many virtues, while the place of the soul is taken by the Holy Spirit.
This passage provides the foundational Philokalic definition of dispassion as a synthetic totality of all virtues indwelt by the Holy Spirit, not a discrete spiritual quality.
, The Philokalia, Volume 4, 1995thesis