a joyous and pleasurable life. Daya Krishna argues that artha, as well as the concept of Puruṣārthas, is a myth. The various schools and ancient Sanskrit texts provide no consensus opinion, notes Krishna, rather they present a debate, a diversity of views on what artha and Puruṣārtha means. Inconsistencies and conflicting verses are even present within the same script, such as the Manusmriti. Some ancient Indian texts suggest artha are instruments that enable satisfaction of desires; some include wealth, some include power, and some such as the bhakti schools include instruments to love God. Some of this, suggests Krishna, reflects differences in human needs. Perhaps, conjectures Krishna, artha is just a subset of kama and karma. Vatsyayana in Kama Sutra defines artha as the acquisition of arts, land, cattle, wealth, equipages and friends. He explains, artha is also protection of what is already acquired, and the increase of what is protected. Gavin Flood explains artha as "worldly success" without violating dharma (moral responsibility), kama (love) and one's journey towards moksha (spiritual liberation). Flood clarifies that artha in ancient Hindu literature, as well as purushartha, is better understood as a goal of Man (not a man). In other words, it is one of the four purposes of human life. The survival and the thriving of humans requires artha – that is, economic activity, wealth and its creation, worldly success, profit, political success and all that is necessary for human existence. History The word Artha appears in the oldest known scriptures of India. However, the term connotes 'purpose', goal or 'aim' of something, often as purpose of ritual sacrifices. Over time, artha evolves into a broader concept in the Upanishadic era. It is first included as part of Trivarga concept (three categories of human life - dharma, artha and kama), which over time expanded into the concept Caturvarga (four categories, including moksha). Caturvarga is also referred to as Puruṣārtha. The Mimamsa school of Hinduism explained artha, dharma and kama by contrasting Puruṣārtha and Kratvartha. Puruṣārtha is human purpose of a yajna, while Kratvartha is sacrificial purpose of a yajna. They recognized and explained all human actions have two effects: first, every act affects itself regardless of actors involved; second, every act has human meanings, hopes and desires and affects each actor in a personal way. Jaimini explained in 3rd century BCE, that this human meaning cannot be separated from the human goal.