The Keys
At my waking I noticed these keys in my hand. It felt baffling, of course, and I wondered what they could possibly open.
Certainly not my house doors since they do not have any locks.
I went outside and spent the entire day searching and trying the keys in every door I found, but in vain. At night, I went to bed disappointed.
A dream of a tower with many chambers came to me, in which my keys worked just fine, where I was able to move from one chamber to another full of joy.
The keys of reality open up the doors of dreams, while the keys of dreams unlock reality.