Celia is motivated to join a support group after her husband's death in order to meet others who understand what she is experiencing. this is the result of a motivation related to:

The scenario in which Celia is motivated to join a support group after her husband's death in order to meet others who understand what she is experiencing is the result of a motivation related to emotional regulation.
The term emotional regulation describes a person's ability to effectively manage and respond to an emotional experience. We use emotion regulation strategies unconsciously  to cope with difficult situations .