Max Jacob to a student:

Meditation is not about having ideas, on the contrary! it consists in having one, in transforming it into feeling, into conviction. A meditation is good when it leads to a YES, pronounced by the whole body, to a cry from the heart: joy or pain! by a tear or a burst of laughter. Just try to meditate on this: God became man. Repeat this within yourself until you come to conviction. It does not matter which images appear, image of Christ or child or young man or crucified. No matter. Repeat on your knees: God became man! For how long ? It depends on your faculties. There are good ten-minute meditations and bad ones that last an hour. In short, collect yourself twice a day at least.

I'm not talking to you about prayer, about contemplation, first because I don't understand much about it, then because I don't want to make you a mystic, but only a man.