In traditional Japanese aesthetics, wabi-sabi is a world view centered on the acceptance of transience and imperfection. Japanese do not really admire perfection ... The idea is that nothing in the universe ie perfect, therefor you should not look for perfection.
So when you design things, you leave something to make sure it is not perfect. The picture above is a gate at Nikko called Youmei Mon. It was so beautiful and prefect, the architecture decided to build the gate with one of the pillars upside down. That's wabi-sabi.
Since 1996, Japanese-Online has been provided as a free service from PSPINC with the purpose of providing resources to individuals interested in learning about the Japanese Language and culture.
Japanese-Online has content suited to varying levels of study, including lessons for beginners as well as lessons tailored for those who need grammar and writing resources. Lessons are best suited to those who have basic understanding of hiragana and katakana alphabets before moving on to the more advanced grammar and particle lessons. Grammar lessons focus on learning about writing and creating more complex sentences and most lessons will not use romaji (Japanese sounds written with roman letters). Kanji is used in the lessons with hiragana and English translations provided.