What is "debjan"

Debjan is a Bengali novel written by Bibhutibhushan Bandyopadhyay. The work is a fiction and deals with life after death. The name Debjan is derived from the Sanskrit word "Devyaan" which literally translated as the path of Gods. This is the path of no return, i.e. a soul traversing this path will be liberated according to the ancient Indian scriptures. The description of this path occurs in Upanishads and also in Gita. The other path is known as Pitr Yaan. A soul traversing this path will have to return to the world again for reaping the fruits of Karma. Gita refers to these two paths as the "White" and the "Black" paths, one which leads to eternal life and the other compels one to return to the world. The exact sloka, however does not take the name "Devyaan".