> You find yourself on the other side of the portal. The place is dark. As your eyes adjust, you realize that you are underground. There is a light from the other end. It looks like daylight, though you are not certain- you're too far away.

As for where you are, this is obviously a cave. In fact it's so glaringly obvious that it's a cave, that if you were to look directly at the obviousness of this fact, the visual object you would observe such obviousness with would surely be blinded for a period not less than three days.

~ You feel a little stupid now. Just a little though. You're used to dark places though, and give your eyes a moment to adjust. Huh, bringing the tea lights was a good idea - Assuming everything looks clear, you pull one out and light it, so you can see better around you.