How does the concept of empowerment relate to one's mental health?

That's a big one!: I can't do it justice here. A basic human need is a sense of agency, or "empowerment." We often act in problematic ways in search of this feeling, so learning to gain a sense of agency in healthy ways is important. Empowerment is particularly healthy when it boosts compassion for self and others. Ironically, we often must let go of our need for control to gain a sense of empowerment.