In Karma yoga philosophy, there are two central concepts: Sakam Karma and Nishkam Karma. Sakam Karma is to take action under self-centered motivations with the goal of being thanked or receiving goodness in return. Nishkam Karma is the opposite of Sakam Karma and is considered to be selfless action without even the subtle internal hope for a “thank you” or goodness returned.
Ultimately, Nishkam Karma is considered non-attachment to the result of personal actions in life, but with selfless and loving motives. The karmic concept centers on whatever actions a yogi makes within the world for the sake of others and not for self-benefit.