If you’re quite familiar with the symbol below, it could be the Deathly Hallows symbol from Harry Potter. If you know that, then I’m assuming you also know that a deer has so much value for a couple of characters in the story.
“He wishes he could remember everything. He doesn’t sense a bone in his body that can feel compassion or worthiness. Self-pity hides away as well, the lowest form of emotion not even capable of resting in his wrecked mind.” ― Christy A.