Upasana

Upasana (Sanskrit: उपासना '''') literally means "worship" and "sitting near, attend to". It refers to the worship of, or meditation on, formless things, such as Absolute Self, the Holy, the ''Atman'' (Soul) Principle, distinguishing meditative reverence for an internalized and intellectual concept from earlier forms of physical worship, actual sacrifices and offerings to Vedic deities.

The term also refers to one of three ' (, parts) of Vedas, one that focuses on worship or meditation. The other two parts of Vedas are called Aranyakas and Upanishads, sometimes identified as ' (, ritualistic sacrifice section) and '''' (, knowledge, spirituality section). Provided by Wikipedia