American psychologist Carl Rogers writes On Becoming a Person: A Therapist’s View of Psychotherapy (1954,)

When the other person is hurting, confused, troubled, anxious, alienated, terrified, or when he or she is doubtful of self-worth, uncertain as to identity, then understanding is called for. The gentle and sensitive companionship of an empathic stance provides illumination and healing. In such situations deep understanding is, I believe, the most precious gift one can give to another.