Waves are the practice of the water.

 “Waves are the practice of the water.”
― Shunryu Suzuki, Zen Mind, Beginner's Mind: Informal Talks on Zen Meditation and Practice

“The person who can freely acknowledge that life is full of difficulties can be free, because they are acknowledging the nature of life - that it can't be much else.”
― Shunryu Suzuki, Zen Mind, Beginner's Mind: Informal Talks on Zen Meditation and Practice

“Now it is raining, but we don't know what will happen in the next moment. By the time we go out it may be a beautiful day, or a stormy day. Since we don't know, let's appreciate the sound of the rain now.”
― Shunryu Suzuki, Zen Mind, Beginner's Mind: Informal Talks on Zen Meditation and Practice