Friday Cheshvan 21 5704
Torah Lesson: Chumash: Chayei Sara, Shishi with Rashi.
Tehillim: 104-105.
Tanya: This is the (p. 581) 38, see there. (p. 583).

It is the avoda of davening which brings the comprehension of the brain into the emotional sensitivity of the heart - and (also brings) both of them together into the practical avoda of performing mitzvot with fear-of-Heaven and acquiring fine character-traits.