Three Pure in Chinese / Japanese...

精, 氣, 神 are the characters jing, qi, and shen.

As a set, these three characters are known in English as the treasures of traditional Chinese medicine, the treasures of Qi Gong, or the three treasures of Taoism / Daoism.

Sometimes this set is titled 三寶 (sānbǎo) or “three treasures,” but here, we're writing each treasure out.

Here's how these characters are perceived in this context...
Jing: nutritive essence; refined; perfected; pure
Qi: vitality; energy; force; breath; vigor
Shen: spirit; soul; mind; being

To keep it simple, you can use “essence, vitality, and spirit” to define these.

清 is a word that means clarity or clear in Chinese, Japanese Kanji, and old Korean Hanja.

Looking at the parts of this character, you have three splashes of water on the left, “life” on the top right, and the moon on the lower right.

Because of something Confucius said about 2500 years ago, you can imagine that this character means “live life with clarity like bright moonlight piercing pure water.” The Confucian idea is something like “Keep clear what is pure in yourself, and let your pure nature show through.” Kind of like saying, “Don't pollute your mind or body, so that they remain clear.”

This might be stretching the definition of this single Chinese character but the elements are there, and “clarity” is a powerful idea.

Korean note: Korean pronunciation is given above but this character is written with a slight difference in the "moon radical" in Korean. However, anyone who can read Korean Hanja, will understand this character with no problem (this is considered an alternate form in Korean). If you want the more standard Korean Hanja form (which is an alternate form in Chinese), just let me know.

Japanese note: When reading in Japanese, this Kanji has additional meanings of pure, purify, or cleanse (sometimes to remove demons or "exorcise"). Used more in compound words in Japanese than as a stand-alone Kanji.

日蓮 is the title Nichiren.

This title refers to a Buddhist priest who lived from 1222 to 1282. He is the founder of the Nichiren sect of Buddhism.
According to historical documents, the Nichiren sect was established in 1252. Adding the character 宗 for sect, this would be 日蓮宗 (Nichiren sect), which is also known as the 法華宗 or Lotus sect.

According to Soothill-Hodous...
Nichiren's chief tenets are the three great mysteries 三大祕法, representing the trikāya:
1. 本尊 or chief object of worship, being the great maṇḍala of the worlds of the ten directions, or universe, i.e., the body or nirmāṇakāya of Buddha.
2. 題目 the title of the Lotus Sutra 妙法蓮華經 Myo-ho-ren-ge-kyo, preceded by Namo, or “Adoration to the scripture of the lotus of the wonderful law,” for it is Buddha's spiritual body.
3. 戒壇 the altar of the law, which is also the title of the Lotus as above; the believer, wherever he is, dwells in the Pure-land of calm light 寂光淨土, the saṃbhogakāya.

布施 is the Buddhist practice of giving known as Dāna or दान from Pali and Sanskrit.

Depending on the context, this can be alms-giving, acts of charity, or offerings (usually money) to a priest for reading sutras or teachings.

Some will put Dāna in these two categories:
1. The pure or unsullied charity, which looks for no reward here but only in the hereafter.
2. The sullied almsgiving whose object is personal benefit.
The first kind is, of course, the kind that a liberated or enlightened person will pursue.

Others will put Dāna in these categories:
1. Worldly or material gifts.
2. Unworldly or spiritual gifts.

You can also separate Dāna into these three kinds:
1. 財布施 Goods such as money, food, or material items.
2. 法布施 Dharma, as an act to teach or bestow the Buddhist doctrine onto others.
3. 無畏布施 Courage, as an act of facing fear to save someone or when standing up for someone or standing up for righteousness.

The philosophies and categorization of Dāna will vary among various monks, temples, and sects of Buddhism.

Breaking down the characters separately:
布 (sometimes written 佈) means to spread out or announce, but also means cloth. In ancient times, cloth or robs were given to the Buddhist monks annually as a gift of alms - I need to do more research, but I believe there is a relationship here.
施 means to grant, to give, to bestow, to act, to carry out, and by itself can mean Dāna as a single character.

Dāna can also be expressed as 檀那 (pronounced “tán nà” in Mandarin and dan-na or だんな in Japanese). 檀那 is a transliteration of Dāna. However, it has colloquially come to mean some unsavory or unrelated things in Japanese. So, I think 布施 is better for calligraphy on your wall to remind you to practice Dāna daily (or whenever possible).

This 氣 energy flow is a fundamental concept of traditional Asian culture.

氣 is romanized as “Qi” or “Chi” in Chinese, “Gi” in Korean, and “Ki” in Japanese.
Chi is believed to be part of everything that exists, as in “life force” or “spiritual energy.” It is most often translated as “energy flow” or literally as “air” or “breath.” Some people will simply translate this as “spirit,” but you must consider the kind of spirit we're talking about. I think this is weighted more toward energy than spirit.

The character itself is a representation of steam (or breath) rising from rice. To clarify, the character for rice looks like this:
Steam was apparently seen as visual evidence of the release of “life energy” when this concept was first developed. The Qi / Chi / Ki character is still used in compound words to mean steam or vapor.
The etymology of this character is a bit complicated. It's suggested that the first form of this character from bronze script (about 2500 years ago) looked like these samples:
However, it was easy to confuse this with the character for the number three. So the rice radical was added by 221 B.C. (the exact time of this change is debated). This first version with the rice radical looks like this:
The idea of Qi / Chi / Ki is really a philosophical concept. It's often used to refer to the “flow” of metaphysical energy that sustains living beings. Yet there is much debate that has continued for thousands of years as to whether Qi / Chi / Ki is pure energy or consists partially or fully of matter.

You can also see the character for Qi / Chi / Ki in common compound words such as Tai Chi / Tai Qi, Aikido, Reiki, and Qi Gong / Chi Kung.

In the modern Japanese Kanji, the rice radical has been changed into two strokes that form an X.

The original and traditional Chinese form is still understood in Japanese, but we can also offer that modern Kanji form in our custom calligraphy. If you want this Japanese Kanji, please click on the character to the right instead of the “Select and Customize” button above.

More language notes: This is pronounced like “chee” in Mandarin Chinese, and like “key” in Japanese.
This is also the same way to write this in Korean Hanja where it is Romanized as “gi” and pronounced like “gee” but with a real G-sound, not a J-sound.
Though Vietnamese no longer use Chinese characters in their daily language, this character is still widely known in Vietnam.

See Also:  Energy | Life Force | Vitality | Life | Birth | Soul