Before davvening [praying] in the morning, it is good to do some light exercises to remove disturbing bodily tensions. There are various intentions that can accompany this. You can, as you move each limb, dedicate it to God and express your resolve that it be used that day in His service. Or you can think of your desire and intention to use your whole body in your prayer, fulfilling the verse, "All my bones shall say, 'O Lord, who is like unto Thee!'" Rabbi Nachman of Bratzlav would sometimes talk to his various limbs to "convince" them of the need to serve God. Other accompaniments for such an exercise can be to meditate on how the energy of your movements comes from God, or to express prayer intentions in the gestures of the exercise.

— Yitzak Buxbaum in Jewish Spiritual Practices