Tanya Chapter 38 part 5. Your Divine instinct drives you to remain connected to your Source at any cost. Let that be the soul of your mitzvah

A human being is characterized by his power of intellect and freedom of choice. A person with the ability to meditate upon Hashem’s greatness and to generate love and awe based on that awareness, when he uses that intention to power a mitzvah, his intention becomes like the soul of a human for the body of the mitzvah. But what if you do not have the capacity to create love through meditation? How will you infuse soul –– the intention to attach to Hashem –– into your mitzvah? All you have to do is remember your essence, the love that you have etched deep within your core. A Jew must remember that they would suffer martyrdom rather than be separated from Hashem. So then consider this: Torah study and mitzvah performance is the opportunity to attach to Hashem and be absorbed in His oneness. If you would be willing to give up your life so as not to detach from Hashem, won’t you grab the opportunity to attach to Him? You will. And that intention becomes the soul of the mitzvah on the level of the animal, who operates not by freedom of choice, but rather by instinct.