wakefulness - a periodic state during which you are conscious and aware of the world

religious rite, rite - an established ceremony prescribed by a religion; "the rite of baptism"

viewing, wake - a vigil held over a corpse the night before burial; "there's no weeping at an Irish wake"

agrypnia - a vigil before certain feasts (as e.g. Easter)

faith, religion, religious belief - a strong belief in a supernatural power or powers that control human destiny; "he lost his faith but not his morality"

surveillance - close observation of a person or group (usually by the police)

continuous receiver watch, listening watch - a watch established for the reception of traffic of interest to the unit maintaining the watch

spying - keeping a secret or furtive watch