Seung Sahn — South Korean Clergyman born on August 01, 1927, died on November 30, 2004

Seungsahn, born Duk-In Lee, was a Korean Seon master of the Jogye Order and founder of the international Kwan Um School of Zen. He was the seventy-eighth Patriarch in his lineage. As one of the early Korean Zen masters to settle in the United States, he opened many temples and practice groups across the globe. He was known for his charismatic style and direct presentation of Zen, which was well tailored for the Western audience... (wikipedia)

I always try meditation. Meditation means always keeping one mind, not-moving mind.
American dog say, 'Woof, woof.' Korean dog say, 'Mung, mung.' Polish dog say, 'How, how.' So which dog barking is correct? That is human beings' barking, not 'dog' barking. If dog and you become one hundred percent one, then you know sound of barking. This is Zen teaching. Boom! Become one.
Perceiving your own voice means perceiving your true self or nature. When you and the sound become one, you don't hear the sound; you are the sound.
Correct meditation means correctly understanding your situation moment by moment - what are you doing now? Only do it! Then, each action is complete; each action is enough. Then no thinking, so each moment I can perceive everything just like this.
You can fix your body, your heart, your diabetes. In Korea, China, and India, there are people who do yoga. They go to the mountains and do breath-in, breath-out meditation. They can live 500 years and not get sick. Keeping their bodies for a long time is possible; even flying in the sky is possible.