Fortunate in Chinese / Japanese...

This can be translated as "good luck", "fortunate", "lucky" and/or "good fortune" in Chinese, Korean and Japanese.

Occasionally, this is also translated as a type of happiness or a short way to write serendipity.

幸 can mean happiness, good fortune, good luck, and in the old days, good harvest or bounty.

Note: From Japanese, this character is sometimes romanized as "sachi", and is often pronounced "kou" or sometimes "rei" when used in compound words with other Kanji.

幸福 is a general state of "happiness" which can also be translated as truly-blessed, welfare, well-being, or fortunate.

室利 is a Buddhist term or title that comes from the Sanskrit śrī.

The meaning is fortunate, lucky, prosperous, wealth, or beauty. This can be a sort of suffix for certain deities or respected people in Buddhism.

倖存者 is the most common way to express "survivor" in Chinese. It literally means "lucky/fortunate surviving person".

倖存者 is kind of an odd selection for a wall scroll but there is no better way to say survivor in Chinese calligraphy.

幸運な偶然 is one of many ways to express serendipity in Japanese.

The first two Kanji mean fortunate, lucky, fortune, or good luck.

In the middle is a Japanese Hiragana character that serves to connect these words/ideas together.

The last two Kanji mean incidentally, by chance, randomly, unexpectedly, suddenly, accident, fortuity, or by coincidence.

永遠の幸福 means "eternal happiness" in Japanese.

永遠 means eternal, eternity, perpetuity, forever, immortality, and permanence.

の is a possessive article which sort of makes this selection mean "happiness, of the eternal kind".

幸福 means happiness, though this word can also be translated as truly blessed, joy, happy, welfare, well-being, or fortunate.