A poem describing great feelings

The feeling of isolation: the world: in ancient times, 30 years was life. Refers to the feeling of great changes in personnel or scenery, as if an era had passed.

* * * Your words are better than reading for ten years: talking to you once is better than reading for ten years. Describing the other person as knowledgeable and insightful, he benefited a lot from the conversation.

As if in a previous life: as if; World: Thirty years is a lifetime. It seems that an era has passed. Refers to a feeling caused by great changes in personnel or scenery.

It's like a lifetime ago: it's like the world: 30 years is a lifetime. It's like a lifetime apart. Refers to the feelings caused by great changes in personnel and scenery.

Thirty years in Hedong, thirty years in Hexi: thirty years ago, Feng Shui was in Hedong, and thirty years later, Feng Shui was in Hexi. Metaphor things change, ups and downs.

Than studying for ten years: than. More than ten years of hard work. Describe the great benefits of thought.

Ten years without clothes: ten years without new clothes. The metaphor is extremely poor.

Under the window of ten years: in the imperial examination era, scholars buried themselves in their studies all the year round in order to achieve fame. Describe studying hard behind closed doors for ten years.

Sharpen a sword in ten years: it is good to sharpen a sword in ten years. It is a metaphor for years of hard training.