In Ancient Greece, the unbroken, interlocking pattern of the Meander (Meandros), or Greek Key, was one of the most important symbols; it symbolized infinity, unity and the eternal flow of life through reproduction.
The long, continuous line, repeatedly folding back on itself, which resembles the perpetual flow of water, or waves, represents the eternal movement of Life.
As a sign of continuation, the meander symbol corresponds with never-ending friendship, love and devotion.
Some historians believe that the meander symbol has a strong association with the labyrinth as it can be created with the Greek key pattern.
The Meander-style labyrinth at Washington National Cathedral symbolizes the human journey from sin to redemption.