"Zen" is short for "Zen-na" i.e. dhyana in Sanskrit, and jhana in Pali. The meaning is, to some extent, "thinking" or "meditating". In ancient India, people would sit in the forest or under a giant tree and meditate to train their minds. This is said to be the origin of Zen.
Siddhartha Gautama of India, the patriarch of Buddhism, acquired his supreme perfect enlightenment after much struggle while meditating under a bo tree. Thus meditation as a training method developed, and was introduced to Japan via China with the religion.
"Shoumyou" is the music of Buddhism where monks chant the mantra and/or a sutra with a melody. This also descended from India to China and Japan along with Buddhism. Its melody and rhythm had a big influence on Japanese music such as "Jyoruri" and "Youkyoku". Shoumyou is still sung in temples today, echoing solemnly and deeply through the walls of the temple's halls and corridors.
Zen teaches us that humans are able to reach perfect enlightenment, especially because it is human nature to make mistakes and to have doubts, and to own earthly desires. It was Ikkyu, the Zen priest who said that "The Pure Land lies within our very souls".
Souls are very difficult to control, despite it being your own.
When you breathe to the echo of the sounds from this album, so soft like a cool breeze, you will feel the calmness and little by little see that the space within your brain broadens with light. Perhaps you will feel the universe itself.
This will give you an opportunity to take time off from your busy life, and experience a different spatial dimension of tranquility.