Here, he clearly saw, was the supreme triumph of the religious life.

But, instead of quieting, the thought disturbed him.

He went away thinking thoughts which he would fain have kept at a distance.
The ninth hour found him in the oratory, and later he attended vespers, at which office the monks sang an evening hymn of the holy Ambrosius:-- 'O lux, beata Trinitas, et principalis Uuitas, Jam sol recedit igneus; infunde lumen cordibus.
Te mane laudum carmine, te deprecemur vesperi, Te nostra supplex gloria per cuncta laudet saecula.' The long sweet notes lingered in Basil's mind when he lay down to rest.
And, as he crossed himself before sleeping, the only prayer he breathed was: '_Infunde lumen cordi meo_.'.