People are not devoted to God because desires, such as desire for sense enjoyments, greed, obsessions, anger, depression, and more, lead to delusion and sweep away their understanding. Desires manifest in various forms and drive reactions like depression, anger, and greed, ultimately clouding one's understanding.
Swami Sarvapriyananda teaches Chapter 7 (Verses 20-23) of the Bhagavad Gita. In this series of talks, Swami Sarvapriyananda unfolds the highest truths of Vedanta through the study of the Bhagavad Gita (The Song of God).