The Jataka, Volume I, tr. by Robert Chalmers, , at sacred-
texts.com "Fear’st thou the wind."--This story was told by the
Master while at Jetavana, about a Brother who lived in a
perpetual state of nervous alarm. We learn that he came of a
good family in Sāvatthi, and was led to give up the world by
hearing the Truth preached, and that he was always in fear of
his life both by night and by day. The sough of the wind, the
rustle of a fan, or the cry of bird or beast would inspire him
with such abject terror that he would shriek and dash away. He
never reflected that death was sure to come upon him; though,
had he practised meditation on the certainty of death, he would
not have feared it.  For only they that do not so meditate fear
death. Now his constant fear of dying became known to the
Brethren, and one day they met in the Hall of Truth and fell to
discussing his fearfulness and the propriety of every Brother's
taking death as a theme for meditation. Entering the Hall, the
Master asked, and was told, what th