Locus amoenus is a literary topos involving an idealized place of safety or comfort. A locus amoenus is usually a beautiful, shady lawn or open woodland, or a group of idyllic islands, sometimes with connotations of Eden or Elysium.
John Constable's Wivenhoe Park, Essex: An idyllic scene featuring trees, grass, and water
Maerten Ryckaert, Rocky Pastoral Landscape
Characters in the Forest of Arden in Shakespeare's As You Like It
In anthropology, liminality is the quality of ambiguity or disorientation that occurs in the middle stage of a rite of passage, when participants no longer hold their pre-ritual status but have not yet begun the transition to the status they will hold when the rite is complete. During a rite's liminal stage, participants "stand at the threshold" between their previous way of structuring their identity, time, or community, and a new way.
Initiation ritual of boys in Malawi. The ritual marks the passage from child to adult male, a liminal stage in the context of their lives.
Destruction, from The Course of Empire by Thomas Cole (1836)
Liminal phase of a rite of passage: Albert Anker's Die Ziviltrauung ("The Civil Marriage"), 1887
A painting depicting Jacob's Ladder to heaven