What is a zen garden?

Konnichiwa, students,

Have you searched to find out what the Japanese word "konnichiwa" means? It is a standard greeting, or what we know as "hello".
In my last blog I presented a picture of a garden and described it as a "zen" garden. I wondered if any of you have used the library's resources to find out what kind of garden that might describe.
Basically, a zen garden is a Japanese rock garden. It contains sand, gravel, rocks, and occasionally grass, but plants are not considered an important, or necessary element of this type of garden. The garden itself is usually set in a sand pit. The gravel represents the sea, and the rocks represent land. The sand, or gravel, is raked into patterns that suggest rippling water. This type of garden is often meant to be viewed from one point of view. It is a garden that is meant to be studied. This practice sometimes leads to contemplation, either of the garden, or the viewer's life. This type of garden is usually found in Buddhist temple grounds.