A Nurse Takes a Day to Travel to a State

A nurse takes a day to travel to a state park where she/he can sit by the river alone to reflect over recent events and put things into perspective.Time is spent recalling the time he/she was complimented for the ability to deal with a difficult patient and another time when he/she was criticized for lack of teamwork.This nurse is improving which source of energy?

A) Emotional
B) Spiritual
C) Physical
D) Mental