How to reach the top of the Floating Temple (Arcana)

A random stranger gave me a quest to retrieve a cursed sword from a floating temple. So, I accepted and immediately began making my way to the floating temple. However, once I reached the second floor I got stuck. The only way I can see into the centre is past a ‘glowing candle’ which is impassable, and, apparently, invulnerable. How do I get to the cursed sword? And is it even posible?

never heard of this before, but have you tried examining the candle through the look menu? tried using things on the candle? its likely some sort of puzzle you’d have gotten a clue to.

Now I feel like an idiot. examining the candle gives you the option to take it down, thereby removing it.