Write, Writing
Why would you try to take a brush to the sun? It's almost too obvious, because you want to write something down.
Just imagine yourself sitting on the sun, writing back to your friends and family with a brush. For someone who can visit the sun, it's really weird that you are writing with a brush like this, but you're doing it just the same.
しょ
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What did you write about? You were writing about this amazing circus show (しょ) you just watched on the sun. You didn't expect there to be any shows here, but turns out you were wrong!
Think of your favorite live shows and imagine them on the sun. Also imagine yourself writing back to your friends and family about said shows.