How does spiritual faculty - be - turned into virtues?
Your question appears to suggest that one already has or possesses spiritual powers? And then that these Spiritual Powers are converted into virtues.
If I understand you correctly - you have this generally backwards.
If one had spiritual faculties - only the practice of the Holy Virtues will sustain those abilities.
It is generally the development and practice of the spiritual or Holy Virtues that leads to the development of Spiritual faculties or Powers.
Peoples un-virtuous behavior causes the dissipation of the spiritual energy in the body
Virtuous behavior and mental attitudes facilitate the storing and accumulation of the Spiritual energy which then begins a maturing effect, that results in the activation of the spiritual centers (Chakras), that then results in the development of Spiritual faculties or powers / abilities.