Karma is not something complicated or philosophical. Karma means watching your body, watching your mouth, and watching your mind. Trying to keep these three doors as pure as possible is the practice of karma.
Thubten YesheAs human beings we have the capacity to enjoy limitless, blissful happiness...there is nothing wrong with having pleasures and enjoyments. What is wrong is the confused way we grasp onto these pleasures, turning them from a source of happiness into a source of pain and dissatisfaction. It is grasping and attachment that is the problem, not the pleasure themselves.
Thubten Yeshe