Kṛṣṇa concludes His description of the field by adding our psychological interactions. He includes desire, hatred, pleasure, and pain as part of the material field. Even the determination to stick to a goal is categorized here as a change occurring within the field of matter. This is a revolutionary psychological insight. Kṛṣṇa is saying that our emotions are not the soul; they are the ‘Vikāras’ or modifications of the material body and mind. The soul is merely the witness of these passing storms of emotion. When you feel sad, it is your mind that is sad, not ‘You’. Understanding this helps us remain equanimous. We stop being victims of our mood swings once we realize they are just movements in the field. This summary helps us identify exactly where the body ends and where the conscious soul begins, allowing us to find stability in our true identity.