Buddhist cosmology addresses the contents, structures, and processes of the world, especially with a view toward how these relate to the experiences of living beings. Some ideas occur broadly across various traditions, including that the world is disk-shaped, centers on the enormous mountain Sumeru, contains a human-inhabited continent called Jambudvīpa, and carries numerous layers of heavens above and hells below. At the same time, differing cosmological interpretations have been key to the development of many of the diverse philosophies and practices seen across Buddhist history. Over time, scholars, artists, and practitioners have reinterpreted cosmological features and frameworks to express new ideas about the personhood of the buddha, the nature of enlightenment, the techniques by which followers progress along the Buddhist path, and more. Some major innovations of Mahāyāna and Vajrayāna Buddhism were cast in explicitly cosmological terms. Such important cosmological statements appear not only in scriptures and treatises but also in other aspects of Buddhist culture, such as ritual performances, visual artworks, and material objects. The cosmology of Buddhism is deeply intertwined with everything from its most profound intellectual developments to the lives and activities of everyday individuals.