Acharya Prashant explains that when a relationship feels like a business, it is because the mind is not pure and is relating to the other person for a purpose or a reason. He terms this as 'sakam,' which means 'with desire,' and applies it to concepts like love with desire (sakam prem), devotion with desire (sakam bhakti), and service with desire (sakam seva). Such a relationship is fundamentally based on a purpose. The problem with this approach is that what one wants from the other person is never-ending and too large for them to supply. This inevitably leads to frustration and unmet expectations. Consequently, the love or devotion that was being displayed eventually comes to a halt. The speaker clarifies that this is not genuine love or devotion but rather an investment from which a certain return is expected. When that return is not received, one stops making an effort, much like stopping installment payments. The root of this behavior is an inner hollowness that we try to fill by demanding things from others. There is a paradox, however, in that we are not genuinely interested in filling this void; we both want and do not want to address our deepest desires. As long as there is hope of receiving the desired reward, effort is put into the relationship. But the moment it is sensed that the other person will not provide what is being targeted, the relationship, which is essentially a business-like transaction, ends. The speaker advises that true love, devotion, surrender, and service must be 'nishkam,' meaning without purpose. 'Nishkam' can be interpreted as either purposelessness or as having the highest purpose. A relationship based on a reason has a limited lifespan. Your joy is not a social matter; it should not depend on the acceptance or rejection of others. It is a great slavery to allow your joy to be contingent upon external conditions being met.