What does “shed light upon” mean?
The context:
Now I'm in New York City, safely tucked away into yet another dressing room with my name written across the door in bold,joyous letters—the kind of happy letters that should never be associated with the kind of cause we're here to SHED LIGHT UPON. (shedding light is something I've been asked to do a lot in these past few months, and I'm still not sure what the hell it even means.)