Kabbalah for Sanhedrin 198:12

132 And that which applies to His behavior - applies to the creation because the course and murky creations were not created other than through hiding of His countenance, for the face of His holiness was not illuminated for them, and the honorable spiritual ones were created through the illumination of His countenance. And according to these fundamental principles was this connection between the body and the soul; that the soul, its matters in all their ways, come and continue through hiding of his countenance; and the soul and all of its matters - through the illumination of His countenance. And behold that man himself is the rectifier and the rectified, for he himself does he rectify through his service, and this is the subject (Sanhedrin 99b), "And you shall do them.." - it is written and you shall do you (Atem), that was explicated by the sages may their memory be for a blessing, and it is in his power [man's] to strengthen the physical and its ways himself or the spiritual and its ways. For if he goes after the vision of his eyes and the physical path of his heart, behold his soul, in place of that which was appropriate for it to be, to help the body, in order to refine it as we explained, just the opposite, causes loss and great damage to itself, for it is immersed in darkness. And the opposite of this, if he strengthens himself against his inclination and turns away from the path of vanity, in order to travel in the path of the Torah and Mitzvah - the soul will dominate over the body and refine it: