You should never turn your back on a fire because a monster might jump out at you! Do you see the eyes below? And the tail?
There’s a light in the distance, overlooking a view,
Its’ burning by day and it’s burning by night
It is burning for you
(My take on an old Strawbs song)
“Keep your eyes open, your lamp burning, so you don’t get musty and murky. Keep your life as well-lighted as your best-lighted room.”