Nefesh HaChayim, Reb Itzele's Long Annotation

And from the heart/mind their combinations proceed to all of the vessels of action, to really actively accomplish all of God’s commandments:• In love and fear/awe from the perspective of water, and• In the joy of the commandment from the perspective of fire, and• With wondrous alacrity from the perspective of wind,until all the movements of the limbs/organs of his body can be recognized as only proceeding from God, and all the vessels of the body, from the element of dust are vessels to express the power of their supernal roots, the three mother letters alef, mem and shin, in action.