How do I play this exactly? Sanity/Light and Darkness - please explain

[Dragslo]

I actually find, sitting next to candles a nice thing to do (in closed rooms well to say) and I let him sit there in the game, running, as I go and fetch a cigarette

I ran out of tinderboxes a bit faster in the start, but learned my lesson, it drove me nuts when he blurred out and the worst part was when he had the losest sanity....and then...a monster came x_x had to fire up the lantern and run like hell....but I escaped.