The name Wind Water in Chinese / Japanese...

風水 is the famous technique and approach to arranging your home externally around natural features and internally to create balance and peace.

These two characters literally mean “wind water.” Obviously, the title is far more simple than the concept behind this subject.

It may enlighten you slightly to know that the character for “wind” can also mean style, custom, or manner in some contexts. This may apply somewhat to this title.

In a technical sense, this title is translated as Chinese geomancy.

地水火風空 is the specifically-Japanese version of the five elements.

This is a little different than the ancient or original Chinese version.

The elements are written in this order:
1. Earth / Terra / Ground
2. Water
3. Fire
4. Wind / Air
5. Sky / Emptiness / Void / Ether

Note: This set of Kanji can also be romanized as “ji sui ka fuu kuu,” “jisuikafuukuu,” or “jisuikafuku.”

These can also be written in the order 地火風水空 (chi ka sui fuu kuu). Let me know when you place your order if you want the Kanji to be in this character order.

地水火風 is a Buddhist term that means “earth, water, fire, wind.”

This is often just referred to as “the four elements.” There is a more common title (the five elements) that adds wood to the mix. These four elements are used in some sects of Japanese Buddhism (not so much in Chinese).

五大 is the Japanese title for the five elements.

In Japan, the five elements differ slightly from the original Chinese. Therefore, in Japanese philosophy, you have earth, water, fire, wind, and void (space).

The meaning of the first character is 5, but the second character means great or large. Some translate this as the five majors. 大 is only understood as “elements” when you have 五 in front of it.

In Buddhism, this can be short for 五大明王, or the five great and wise kings.

In Mahayana Buddhism, 四大 represents mahābhūta, the four elements of which all things are made: earth, water, fire, and wind.

This can also represent the four freedoms: speaking out freely, airing views fully, holding great debates, and writing big-character posters.

In some contexts, this can be a university or college offering four-year programs.

To others, this can represent the Tao, Heaven, Earth, and King.

Going back to the Buddhist context, these four elements “earth, water, fire, and wind,” represent 堅, 濕, 煖, 動, which are: solid, liquid, heat, and motion.

真如 comes from the Sanskrit and Pali word often romanized as “tathata” or “tathatā.” Originally written, “तथता.”

It's a Buddhist term often translated as “thusness” or “suchness,” but this does not explain it.
A better explanation may be “the ultimate nature of all things” or “ultimate truth.” However, this gives it too strong of a feeling. This concept is sometimes described as being in awe of the simple nature of something - like a blade of grass blowing in the wind or ripples on water. It is what it is supposed to be, these things follow their nature. Amazing in their mundane simplicity.

Every sect of Buddhism will have a slightly different flavor or explanation, so don't get fixated on one definition.

Notes: Sometimes Buddhists use the word dharmatā, a synonym to tathatā.

In Japan, this can also be the female given name Mayuki, or the surname Majo.