Arn Heaven

Arn Heaven was the Arn's concept of a birthplace.

In reality, the Arn were an artificially grown lifeform, and so had no actual birthplace. They believed, however, that they were born wild in birthing grounds and grew up in a idyllic woodland.

Dorothea Ames, Andrea Quill and Ballon visited the metaphysical Arn Heaven on a mission to remove the arn from Quill's brain. Ballon needed the pheromones of an arn in order to carry out a successful operation. (TV: The Metaphysical Engine, or What Quill Did)