Beautiful Brass Triquetra Wind Chime w/Beads & Bells. Hand cut, made in Brazil. Triquetra 16":   

The Triquetra is, without doubt, one of the most popular and enduring triple knot designs. The word literally means “three-cornered”. The Triquetra, or Trinity knot, can also represent concepts such as the neo-pagan triple goddess symbol; past, present, and future; body, mind, and soul; or the Celtic concept of land, sea, and sky.