dtgreene: Just took this screenshot. Isn't this a nice view? What do you think?
(Location: Upper Monastery)
vicklemos: Did you "jump" into it?! :P
Got me curious!
If you try to walk towards it, towards what would be the outside wall of the monastery, you will fall off the ground, and the game will declare your party crushed. Similarly, as I mentioned earlier in this topic, if you walk far enough away from the monastery, you will fall through the ground and, again, the game will declare you crushed.
Basically, when you look out the monastery door, you see what looks like Arnika Road; however, the developers didn't expect anybody to actually walk there. Hence, the ground was made only solid to a certain distance, and if you look around, you will find that the ground simply ends. Furthermore, the outer wall of the monastery doesn't actually exist here, allowing you to see through it.
Unfortunately Wizardry 8 doesn't have a fly or levitate spell, so you can't actually make it through the wall and go back in bounds that way. (You can get back in bounds at the same spot you go OOB, and you can also go to the Arnika Road transition point, go to Arnika Road, and then re-enter the Upper Monastery. Or, of course, you could cast Return to Portal (if you know that spell and have a portal set, which you probably don't at this point).)
By the way, OOB in the Upper Monastery is a safe place to rest, and it's convenient because it's right before Arnika Road, which is one of the hardest parts of the game (on first visit).