II. Humble Vigilance of Heart

From The Catechism of the Catholic Church

2733
Another temptation, to which presumption opens the gate, is acedia. the
spiritual writers understand by this a form of depression due to lax ascetical
practice, decreasing vigilance, carelessness of heart. “The spirit indeed
is willing, but the flesh is weak.”²¹ The greater the height, the
harder the fall. Painful as discouragement is, it is the reverse of
presumption. the humble are not surprised by their distress; it leads them to
trust more, to hold fast in constancy.

PART FOUR: CHRISTIAN PRAYER