The Willow (Sail) is a tree of consequence to Celts. To them, the ever shifting branches gives/gave the willow quite different qualities than other trees. Such shifting patterns suggest change and difference. Thus, Sail is/was associated with imagination and thought to enhance psychic properties.
The willow or Sail is associated with the English letter “S” in Ogham script. It bears the characteristics noted above and is shown in the accompanying graphic.
