In your own space, share a book/song/movie/tv show/fanwork/etc that changed your life. Something that impacted on your consciousness in a way that left its mark on your soul.
This is difficult. It's hard narrowing it down to one. So I won't.
Tolkien's books are near and dear to my heart in ways I'm not sure I can explain.
Maggie's "Perchance to Dream" post-LotR fanfic (now only available through the Wayback Machine) showed me that there was more to Middle-earth than what Tolkien wrote. It's the fandom I'll return to time and again, no matter if I play in others for a while.
S5 of Doctor Who
gave me the story I needed when I needed it.
Among other things, Diane Duane's Young Wizards
series gave me the Oath
I now take as my spiritual backbone.
None of the above are really explanatory or the whole story or the only things that've touched me. They're just the obvious ones and ways.