The name Den in Chinese / Japanese...

安貧樂道 means “It's better to be happy than rich” in Chinese.

Even if you are poor, you should still feel satisfied in your life...

...Satisfaction, happiness and the meaning of your life come from within yourself and not from money or riches of the world.

In Chinese, there are a lot of four-character proverbs which express some very old philosophies.
Though there are only four characters on this scroll, in Chinese, the meanings often surpass the dictionary definition of each character.

In this case, you should not set your expectations too high for the money or riches you wish to have. One who sets their expectations too high is almost always disappointed. Instead, you should cherish what you have, seek to improve yourself from within, and not measure your worth by the size of your bank account.

See Also:  A Sly Rabbit Will Have Three Openings to Its Den

This Chinese, Korean, and Japanese character means field or farm.

Most of the time, this refers to a rice field.

However, this is very commonly used as a surname that romanizes from Mandarin as Tian, and from Cantonese and Taiwanese, it's romanized as Tien.

In Japanese, it can be the surname Yanakida, Tatsuru, or Tazaki. There are other romanizations used for Japanese surnames for this character. When just a field, it is pronounced “den” in Japanese.

狡兔三窟 speaks to the cunning character of a sly rabbit. Such a rabbit will not have just one hole but rather a few entrances and exits from his liar.

About 2,250 years ago, a rich man told his assistant to go and buy something wonderful that he did not yet possess. He was a man that already had everything, so the assistant went to a local village that owed a great deal of money to the rich man. The assistant told the village elders that all debts were forgiven. All the villagers rejoiced and praised the rich man's name. The assistant returned to the rich man and told him he had purchased “benevolence” for him. The rich man was mildly amused but perhaps slightly confused by the action.

Sometime later, the rich man fell from the favor of the Emperor and was wiped out without a penny to his name. One day he was walking aimlessly and stumbled into the village where the debts had been forgiven. The villagers recognized the man and welcomed him with open arms, clothed, fed him, and gave him a place to live.

Without trying, the man had become like the sly and cunning rabbit. When his exit was blocked, he had another hole to emerge from - and was reborn. This story and idiom come from a book titled “The Amendment” - it's unclear whether this man actually existed or not. But the book did propel this idiom into common use in China.

Still today, this idiom about the rabbit is used in China when suggesting “backup plans,” alternate methods, and anyone with a good escape plan.