Acharya Prashant explains that the constitution of the body is inherently pleasure-seeking, which is the guiding principle behind all bodily actions, including the impulses of the brain. He states that what is often called 'natural' in common language is nothing but pleasure-seeking behavior. The entire system is designed to want and pursue pleasure. The speaker defines pleasure as that which helps 'Prakriti' (Nature or the physical constitution) to further its own agenda. For example, food is pleasurable because it provides the body with the energy to continue, which is what Prakriti wants. Similarly, flattery pleases the subtle body (the mind) because it gives it the energy to continue and further its goals. Therefore, pleasure is anything that agrees with the agenda of one's physical and subtle constitution. However, in the process of obtaining pleasure, one also gets pain. This pain then makes the desire for pleasure even more necessary. The speaker illustrates this with an example: if you earn two units of pleasure, you also get two units of pain, and the net result is zero. The system then infers that two units were insufficient and starts wanting three units. But three units of pleasure will come with three units of pain. This cycle of chasing pleasure, getting pain, and being spurred by that pain to chase even more pleasure is described as the cycle of human life. The pain that accompanies pleasure is not something one has earned or chosen; it comes as a bonus, tagged along with the desired pleasure. If one had a choice, they would want only the pleasure and would want to untag the pain. However, the two cannot be separated.