5 The present is the season of confession: confess what you have done in word or in deed, by night or by day; confess in an acceptable time, and in the day of salvation receive the heavenly treasure. Devote your time to the Exorcisms: be assiduous at the Catechisings, and remember the things that shall be spoken, for they are spoken not for your ears only, but that by faith you may seal them up in the memory. Blot out from your mind all earthly care: for you are running for your soul.
You are utterly forsaking the things of the world: little are the things which you are forsaking, great what the Lord is giving. Forsake things present, and put your trust in things to come. Have you run so many circles of the years busied in vain about the world, and have you not forty days to be free (for prayer), for your own soul's sake? Be still, and know that I am God, says the Scripture. Excuse yourself from talking many idle words: neither backbite, nor lend a willing ear to backbiters; but rather be prompt to prayer.
Show in ascetic exercise that your heart is nerved. Cleanse your vessel, that you may receive grace more abundantly. For though remission of sins is given equally to all, the communion of the Holy Ghost is bestowed in proportion to each man's faith. If you have laboured little, you receive little; but if you have wrought much, the reward is great. You are running for yourself, see to your own interest.
Source: Catechetical Lectures (New Advent)