I'm so trying not to use the web to get hints and walkthroughs. I avoid threads that might be spoilers of where I am, so I didn't know about this:
I was just too highly amused last night.
On the Isle, lvl 4 Priest, and I saw a supply chest. And it wanted me to attack it. It begged me to attack it. So I did. And it healed itself before I could do signifigant damage. I came back later, at lvl 5, and Smited the heck out of it. Same thing. Came back at lvl 6+ and FINALLY Smited it open. There was nothing in it! I was amused. All that curiosity for nothing.
And yes, I'm the same one who begs to open the chests in the LDoNs on EQ1.