The "p" at the beginning of psithurism is
silent. It is pronounced sith-err-iz-um. It is the sounds of
wind in the trees and the rustling of leaves.
Psithurism comes from the Greek word psithuros, which means
whispering. It fits with the sound wind often makes when it
blows through trees. On windy fall days, the rustling of the
leaves seems almost musical. Your worries disappear for a time
as you listen to the melodies of the wind in the trees.