Puruṣārtha ("the goal of life") generally refers to religion, economic development, satisfaction of the senses and, finally, liberation. However, above these four kinds of puruṣārthas, love of Godhead stands supreme. It is called parama-puruṣārtha (the supreme goal of life) or puruṣārtha-śiromaṇi (the most exalted of all puruṣārthas). Lord Kṛṣṇa is worshiped by regulative devotional service, but the highest perfection of devotional service is spontaneous love of Godhead.