The soul that does not attach itself solely to the will of God will find neither satisfaction nor sanctification in any other means, however excellent, by which it may attempt to gain them. If that which God Himself chooses for you does not content you, from whom do you expect to obtain what you desire? [. . .] No soul can be really nourished, fortified, purified, enriched, and sanctified except in fulfilling the duties of the present moment. What more would you have? As in this you can find all good, why seek it elsewhere? Do you know better than God? As He ordains it thus, why do you desire it differently? [. . .] Do you imagine you will find peace in resisting the Almighty? Is it not, on the contrary, this resistance (which we too often continue without owning it even to ourselves) which is the cause of all our troubles? It is only just, therefore, that the soul that is dissatisfied with the divine action for each present moment should be punished by being unable to find happiness in anything else.
from Abandonment to Divine Providence, by Father de Caussade
(some punctuation editing done for contemporary English readers)