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