If your mind still gazes about you during the time of prayer, you know that a solitary mind is no longer praying, but a worldly one, for it is trying to adorn its outward tent.
In your prayer. guard your memory with all your power so that it doesn’t present all the normal things to the mind but instead moves you to knowledge of the presence. By natural inclination the mind is easily held captive by memory during the time of prayer.
While in prayer your memory will present to you either mental images of old matters, or newer concerns, or the face of someone who has caused you pain.