The name Yuan Fen in Chinese / Japanese...

緣分 or Yuan Fen is the fate or chance that brings people together.

This can also mean a predestined affinity or relationship. Basically this is about destiny.

芬 is the name Fen in Chinese (Mandarin).

This is the Japanese surname Kawa.

This can be the name the Fen river in China.

入木三分 is a four-character Chinese proverb that translates in English to a strong form of “profound” or “written with a forceful hand.”

But there is much more to the story...

The deep meaning behind this proverb comes from a man named Wan Xizhi, who lived in the third century.

He was a great writer and calligrapher whose writing style influenced generations of other writers and calligraphers.

He once wrote words on a piece of wood to be taken to an engraver.
When the engraver began to carve the characters into the wood, he found that Wang Xizhi's writing had penetrated the wood about 3/8 of an inch.

Thus people believed that his words were so powerful and profound that they caused the ink from his brush to penetrate the wood deeply.

The proverb literally means “penetrated wood three fen” (A fen is an ancient Chinese measurement of a little over 1/8 of an inch or almost 4mm).

老當益壯 is a Chinese proverb that means “old but vigorous” or “hale and hearty despite the years.”

Said of someone who is more spirited when he/she grows older.

The story behind this Chinese proverb:

In the Eastern Han Dynasty, there was a man named Ma Yuan. He had been planning to herd animals on the frontier since he was young. When he grew up, Ma became a minor official of a county.

Once, he was sending some prisoners to another location. He felt pity for them, so he set them free, and then he fled to another county in the north. He herded animals there, and thus his dream came true. He always said: “If you want to be a great man, the poorer you are, the firmer in spirit you have to be; the older you are, the more spirited you should be.”

Later, when he was even older, Ma Yuan became a famous general of the Eastern Han Dynasty and contributed to many battles.

略跡原情 is a Chinese proverb that means “to overlook past faults,” or “forgive and forget.”

It's more literally, “Abridge or make small the scars from your past emotions.” You should let it go.

The character breakdown:
略 (lüè) abbreviation; omission; abridge.
跡 (jī) ruins; scar; traces.
原 (yuán) former.
情 (qíng) feeling; emotion.