Definition: having the power to produce good or profit; beneficial; helpful; service giving

• What greater bliss than to look back on days spent in usefulness, in doing good to those around us. — Dorothea Lynde Dix (1802–1887) American advocate for the mentally ill
Joy, feeling one’s own value, being appreciated and loved by others, feeling useful and capable of production are all factors of enormous value for the human soul. — Maria Montessori (1870-1952) Italian physician and educator

Consideration: There are many ways to enliven and direct the innate urges of curiosity, adventure, and discovery into useful and progressive paths of growth. It begins by looking around and seeing what interests you.