The retreat is organized into four sessions. You can complete them in a short time or spread them out over the four weeks of Advent. Just go gently, at your own pace. There are advantages in going slowly: God is not in a hurry. And of course some things will attract you which you find yourself pondering beyond your prayer time.
Work out a set of prayer times that suits you best. Decide how long you are going to give yourself for each session. Rhythms help us to settle down, and to anticipate what is ahead. Try to be generous: God is generous and rewards generous hearts (see 2 Corinthians 8 and 9). Half an hour may be suitable for a session. St Ignatius suggests that whatever time you allocate to your prayer, you should be faithful to it, even if you are bored or find it difficult or distracting. Many people say ‘I don’t feel I’m getting anywhere’ but you are offering God your goodwill and your time in a busy day. You may feel useless, but God is at work, deep in your being where you cannot notice what is going on.