What exactly does lighting a bonfire in Dark Souls 1 do?
I mean it changes how the bonfire looks, but what does it do as a game mechanics? For example, in DS3 you respawn at the bonfire you've lighted, but this is not the case in DS1 - you need to rest at it first. I believe you can't warp to a lighted-but-not-rested-at bonfire neither (or can you?).
There must be some reason developers added this action to the game.