The Yoga of the Field and the Knower of the Field

Krishna gives the simplest, most direct definition: your body is the field (kṣetra). You—the awareness that knows the body—are the knower (kṣetrajña). This isn't philosophy. It's fact. Your body is what you experience. You are what experiences it. Most people live their entire lives thinking they are the body. They say 'I am tired' when the body is tired. They say 'I am sick' when the body is sick. They say 'I am old' when the body ages. But you're not the body. You're the awareness that knows the body is tired, sick, or aging. This distinction seems simple, but it changes everything. When you recognize yourself as the knower, separate from the field, you stop suffering from every physical change. The body changes, but you remain constant.