If you have an umbrella, lift it up and turn the sky and the earth upside down, and the umbrella becomes a ship sailing in the sky.
Turn the heaven and the earth upside down, and the birds will be the fish that belong to the sky.
No matter how many lights you turn on, there will be shadows in some places, such as where you are working.
And where is the light that illuminates everything in the world?
Intention: If it is dark all around, then sail away with courage.