I'd guess this is not related to hiking but to some other anxieties in your life - the economic situation, perhaps? If this were my dream I'd interpret it as all the things in my life that I'm struggling with are overpowering me and breaking down the walls I've built to keep myself sane...oh, but wait, this wasn't all about me <img src="/forums/images/graemlins/wink.gif" alt="" />

Sounds pretty scary, nevertheless! I'll bet you were relieved to wake up and not be in that shack.