Spiritual power (霊力 reiryoku?) is a term characteristic to Tales of Zestiria and Tales of Berseria. It is comparable to the recurring concept of mana.
Description
Spiritual power is a type of energy that all living beings possessed. It is the source of malak/seraphic artes and resonance. Some martial and hidden artes' descriptions mention infusing "mana", alternate localization for "spiritual power", into weapons to perform attacks as well.
Spiritual power has some sort of potency, at evidenced with each individual's resonance: lower reserves of it are needed to perceive hellions/daemons while to be able to see seraphim/malakhim it requires much higher reserves. This is evidenced by the aftermath of the Opening and the Advent.