Right off the bat I could see a Geist who had died lost and alone somewhere frigid, maybe on a mountain during a ski trip or camping retreat. It died a slow, exhausting and tragic death, hoping desperately against hope that someone, anyone would find them - particularly the people they had went on said trip with.

As a result the creature is a cold and bitter creature, and not Just regards to being themed around dying from exposure. They want companionship, they crave it like a drug... but the memory of dying alone after waiting day after day ( or even hour after hour) for a rescuer...