In this piece, Joseph and Jesus are sharing a father-son moment while in the carpentry shop. Jesus is learning the trade of His father. While shaving a plank of wood with a wood plane, both figures are checking for straightness and trueness. True craftsmanship in woodworking demands exactness: angles and measurements must be precise or the pieces will have to be re-cut or corrected. The principle of being straight and true is a metaphor for exactness in keeping the commandments and temple covenants.