What does this mean? Explain it to me! ! ! ! !

Your past is over, so I'll say it now. Your past. We should forget all this. Nobody remembers. The ancients said. Died yesterday. Born today. What happened yesterday is over. Starting today. A new decision has been made. Don't chase after it. People today will make new decisions. There will be great achievements.

The above is the content of cancellation, that is, don't dwell on the past, look forward, and you will definitely make great achievements in the future.