- People visualize the Yetzer Harah as a little devil standing on their shoulder, this they find hard to believe. Here is a basic explanation.
- Every action a person does comes from his soul.
- The soul has two parts, the pure soul and the animalistic soul.
- The animalistic soul is the cause for all physical desires.
- Since most people are impure the animalistic soul controls much of their conscious mind. This causes them to have many desires fo physical and sinful actions.
- The more one fights his desires the more he dominates his pure soul over the impure part. His pure soul then becomes bound to his mind , he can then start becoming holy.

(Sharay Kedusha, Rabbi Chaim Vital)