Soul
Souls were the supernatural essence of a living or sentient being, although the specific rules that governed them varied from one universe to another.
Some Demons were interested in purchasing souls. In one universe, Jenny Everywhere's boyfriend David once sold his soul to a Hellhound, (COMIC: My Bloody Valentine) but earned it back after performing a valorous deed. (COMIC: Soulless Mate) In Reality Z-25 31-H, Kelly sold her soul to the Devil, signing a contract stipulating as much, in exchange for him allowing her to return to the land of the living with a resurrected Jenkins. The Devil was taken aback by the cavalier attitude with which Kelly traded away the said soul. (COMIC: Journey Out Of Misery)
One of Alistair Neezley's tall tales, which he repeated almost every year around the Christmas period, involved him claiming that he had substituted himself to the Ghost of Christmas Past as part of an adventure which saw him “save the immortal soul of a sentient polar bear”. (PROSE: The Winter Quests)
In Reality B-89 54-Z, according to legend, the souls of the dead literally flew up into Outer Space upon death. This led Jenny Everywhere, Grandmother Ginger and Old Mother Westwind to try to fly out into space aboard the Wisp when they sought to resurrect Ginger's niece. (PROSE: The Apocryphal Journeys of Jenny Everywhere)
The Ancient One, a robot originally from the Prime Universe, was originally unsure whether robots like him had souls. However, he confirmed as much first-hand when he himself was killed, and was able to return from the Underworld by enacting a contingency he had arranged which relied on this being the case. (PROSE: The Salamandyrs and the Automata, Peace and Quiet) Philatel-426 similarly believed that “one must possess a soul to become a spirit after death” and was unsure that this was possible for Copper-Colored Cupids until he met the ghost of Mailbag-431. (PROSE: A Copper-Colored Christmas Carol)