These are religious wall hung scrolls of Tibetan Buddhist paintings on cotton, or silk appliqué, usually depicting a Buddhist deity, scene, or mandala, richly fabricated or even embroidered in some cases.
Thangka paintings are valued for their aesthetic beauty and primarily for their use as aids in meditation practices. Practitioners use thangkas to develop a clear visualization of a particular deity, strengthening their concentration, and forging a link between themselves and the deity. Historically,thangkas were also used as teaching tools to convey the lives of various masters. A teacher or lama would travel around giving talks on dharma, carrying with him large thangka scrolls to illustrate his stories.