Upasana in Sanskrit literally means `Sitting near` but normally the term is used in Hinduism to denote a prescribed method for approaching a Deity or God or getting close to a deity/deities. In the Vedas, some Upasanas are prescribed whereby one meditates on the all-pervading Brahman as some aspect of creation, such as fire, water, directions, f.....
a generic word for worship
service, attendance
(Skr. sitting near) Worship, reverential attitude -- K.F.L.