In prayer the soul is purified from sin, charity is nurtured, faith takes root, hope is strengthened, the spirit gladdened. In prayer the soul melts into tenderness, the heart is purified, the truth reveals itself, temptation is overcome, sadness is put to flight. In prayer, the senses are renewed, lukewarmness vanishes, failing virtue is reinvigorated, the rust of vices is scoured away; and in this exchange, there come forth living sparks, blazing desires of heaven, in which the flame of divine life burns.
–Saint Lawrence Justinian (1381-1456)