Monk in Chinese / Japanese...

僧侶/僧侶 is a Japanese title for a Buddhist monk.

The first Kanji means Buddhist priest or monk by itself.
The second Kanji means follower or companion.

Note, if you order this from the Japanese master calligrapher, the first character will look a bit more like the Kanji shown to the right than the Kanji shown above. Let us know if you have a preference, as both versions are technically-correct in both Chinese and Japanese.

僧 is the single-character or short form of Sangha, the Buddhist idea of community or order (of monks, nuns, or followers of the Buddha).

Alone, this character can simply mean “monk” (Just means monk in Japanese).

Note that when writing this as Kanji, Japanese will tend to write this in the form shown to the right. If you select our Japanese master calligrapher, please expect this special Kanji form.

藩士 is a strange title for a wall scroll, but it may suit you if you see yourself as a warrior monk.

This title is not commonly used but will be understood in Chinese and Japanese. It can also be read as “armed monks.”

不當和尚不知齋戒苦 literally translates as:
[One who has] not been a monk [does not] know the suffering of [being on a] vegetarian diet.

This is a bit like the “walk a mile in another man's shoes” saying. Basically, it's about you cannot fully understand the plight of others until you experience it yourself.

不當和尚不知頭冷 is a Chinese proverb that literally translates as: [One who has] not been a monk [does] not know [the feeling of a] cold head.
I need to explain that a Chinese Buddhist monk always has a shaved head, and thus a cold head in winter.

Figuratively, this means: One cannot know the true meaning of hardship until one has experienced it oneself.

This is an idiom in Chinese, so the figurative meaning is what people perceive when they hear or read this phrase. Just as in English, when someone says, "The grass is always greener," one will think about the idea of jealousy, rather than the quality of one’s lawn.