These seven cosmic circles appeared in the night sky:
For some reason, I was reminded of something my great uncle gave me long ago. It was like a disk, but he called it a "celestial key". He told me to hold on to it and that I would know when and how to use it.
Here, I found it:
Starting from the dart, I see that it has the word BLINDING on it.
I held the celestial key at arm's length and lifted it up to the first cosmic circle. It was a perfect fit.
I tried various orientations until I reached this one....
....and then, magically, several corresponding letters switched positions between the cosmic circle and the celestial key.
I noticed that the word on the celestial key changed from BLINDING to BRANDING. Meanwhile, the cosmic circle now reads "LIFECANO" which at first seemed like more gibberish, until I realized that it could be parsed as "LIFE CAN O——" or maybe "LIFE CANO——". The beginning of a message, maybe?
With the celestial key now showing BRANDING, I tried to fit it to a few other cosmic circles at various orientations, but no further magic occurred. Maybe I don't understand which order the cosmic circles need to be visited. Can you help me complete the message?
(Visiting the cosmic circles in clockwise order. Withing each cosmic circle, traveling around the text in clockwise order.) RAFECANO ERDTOODB TUTLTMUS FWRWARGS NLYBEUIS ACKWORLS DBEOIVED