Loka () is a concept in Hinduism and other Indian religions, that may be translated as a planet, the universe, a plane, or a realm of existence. In some philosophies, it may also be interpreted as a mental state that one can experience. A primary concept in several Indian religions is the idea that different lokas are home to various divine beings, and one takes birth in such realms based on their karma. Hinduism Three lokas The most common classification of lokas in Hinduism is the Trailokya, or the three worlds. The concept of the three worlds has a number of different interpretations in Hindu cosmology. In Hindu literature, the three worlds refer to either the earth (Bhuloka), heaven (Svarga), and hell (Naraka), or the earth (Bhuloka), heaven (Svarga), and the netherworld (Patala) Bhuloka In the Narada Purana, Bhuloka is identified with the planet Earth, the world of human beings. It is described to be split up into seven regions, referred to as dvipas (islands). These regions are known as Jambudvipa, Plakshadvipa, Shalmaladvipa, Kushadvipa, Krounchadvipa, Shakadvipa, and Pushkaradvipa. Of special significance is the Indian subcontinent, referred to as Bharatavarsha, which is a land where the fruits of one's actions allows one passage into either Svarga or Naraka. Bhuloka also has seven oceans, namely, Lavana, Ikshu, Sura, Sarpih, Dadhi, Dughdha, and Jala. Svarga Generally translated as heaven, Svarga is identified with the realm of Indra and the devas in contemporary Hinduism. The Vedas offer the reward of Svarga as one's destination for the proper practice of sacrificial rituals on earth. In Vedic mythology, Svarga is filled with the nectar of immortality, amrita, with lakes containing lotuses, pools of wine, milk, and ghee, as well as streams that are replete with honey. It is abundant with food and refreshments, and equal opportunity is offered to all of its denizens. It is described to be an infinite, complete, as well as an immortal realm, offering pleasure to those rare few who are able to ascend to it. It is sometimes associated with Pitṛloka, the realm of one's ancestors, but this association is not present in all literature. Naraka Naraka is generally translated as hell, and refers to the loka that humans are sent to to be punished for their sins. Ruled by Yama, sinners are offered appropriate punishments for their sins on earth, and after a period of time, reborn on earth with