Letter 20 Class 1 Tanya Lectures – Iggeres Hakodesh

This classic essay of the Alter Rebbe written so close to his passing reveals an entirely new [ChaBaD] insight into the purpose and end of creation. One is never closer to G-d then he is down here in the physical world. The “Ego” [sense of self containment and independence] of this reality is rooted in His [G-d’s] true self sufficiency and independence. This can only be known in the physical world. it is ultimately revealed through the performance of physical Mitzvos.