Spiritual wellness refers to having a healthy inner self and soul and one of the ways this can happen is through engaging in selfless and altruistic acts.
The satisfaction that this brings would set our inner mind at ease and can manifest itself physically because the body will be less stressed and be more peaceful and calm.
Stanley engaged in an altruistic act and this gave him satisfaction internally which then manifested physically which is why he feels that he is healthy overall.
Federal law requires that "A prescription for a controlled substance to be effective must be issued for a legitimate medical purpose by an individual practitioner acting in the usual course of his professional practice"