sense of mission; awareness of one's duty
A strong internal conviction about one's purpose or calling, often used in professional, organizational, or personal contexts.
He approaches his work with a strong sense of mission.
Her sense of mission as a teacher sustains her.
使命感 is more common and refers to the feeling or sense of mission itself, while 使命意識 emphasizes a conscious awareness or recognition of that mission.
Compound of 使命 (mission) and 意識 (consciousness, awareness).