"The devil has a crafty custom of sometimes urging spiritual persons to  penances and mortifications, in order that by going indiscreet lengths  in this way, they may so weaken themselves as to be unable to attend to  good works of greater importance; or be so intimidated by the sickliness  they have brought upon themselves as to abandon their customary  devotions, and at last turn their backs on the service of God."- St Phillip Neri
 

