A living entity may engage in any occupational duty, but if he wants to have perfection in his duties, he must satisfy the Supreme Lord. As such, one who pleases Him gets better facilities for living, but one who displeases Him gets involved in undesirable situations.
It is therefore concluded that there are two kinds of duties — mundane duty and duty performed for the sake of yajña, or sacrifice (yajñārthāt karma). Any karma (activity) one performs which is not for the purpose of yajña is a cause of bondage. Yajñārthāt karmaṇo ’nyatra loko ’yaṁ karma-bandhanaḥ: “Work done as a sacrifice for Viṣṇu has to be performed; otherwise work binds one to this material world.” (Bg. 3.9) Karma-bandhanaḥ, or the bondage of karma, is administered under the regulations of the stringent laws of material nature. Material existence is a struggle to conquer the impediments put forth by material nature. The asuras are always fighting to overcome these impediments, and by the illusory power of material nature the foolish living entities work very hard within this material world and take this to be happiness. This is called māyā. In that hard struggle for existence, they deny the existence of the supreme authority, Puruṣottama, the Supreme Personality of Godhead.
