Halacha:

Shema 

Machshava:

Tefillah 

Personalities:

Rav Yosef Dov Soloveitchik 

Collections: Rabbi Saks The Rav and Tefilla

References: Rambam: הלכות תפילה פ"א הל' א-ד  

Description

Series from WebYeshiva.org on prayer in the thought of Rabbi Joseph B. Soloveitchik - Part 6: More on Kavvana in Shema vs. in Amida (from "Worship of the Heart").