Pluto Myth Obsidian Burial

Life is like a stage on which we perform mechanically according to the script. Some people are born, some die, some cry, some sing. But what am I? All the scripts have been written long ago, and all the sets have been set up long ago. All I have to do is wait for me to go up and sing the aria, and then the curtain call ends in the indifferent eyes of the audience. The script remains unchanged, the actors remain unchanged. The same audience, the same stage. Like a precision-made instrument, each gear operates regularly according to the instructions. I can only perform on such a stage, and then call the curtain on my life like this.