Francis here acknowledges the need for some structure and organization for times of prayer, patterns of life, including private and group prayer.
The Rule given for Hermitages
Those who wish in their religious life to live in hermitages should consist of three or four brothers at most; two of them may be the mothers and they would have two sonsor at least one. Those two who are the mothers should attend to the life of Martha and the two sons should attend to the life of Mary. (cf. Luke 10,38-42)
And they may have one enclosure, in which each one of them may has his own cell in which he might pray and sleep.