People whose emotional faculty is predominant tend to be hotheaded.

People whose rational faculty is predominant tend to be coldhearted.

Integrating both these faculties in a healthy balance is one of the greatest challenges for leading a productive and fulfilling life.

The Bhagavad-gita (8.7) guides us toward achieving this balance when it urges us to offer both our mind (our emotional faculty) and our intelligence (our rational faculty) to Krishna in devotion. When we make Krishna the center and goal of our lives, then he reciprocates with our devotional intent by channelizing and harmonizing our emotional and rational faculties for his service. Bhakti integrates both these faculties so as to empower us to become coolheaded without being cold and warmhearted without being weak.

Bhagavad Gita Chapter 08 Text 07

“Therefore, Arjuna, you should always think of Me in the form of Krishna and at the same time carry out your prescribed duty of fighting. With your activities dedicated to Me and your mind and intelligence fixed on Me, you will attain Me without doubt.”