The principles of tea Rikyu (the most revered Japanese master, 16th century) set forth are harmony, respect, purity and tranquility. Harmony is the oneness of host and guest with the flowing rhythms of nature ... Respect is the sincerity of heart that allows one to have an open relationship with the other participants, humbly recognizing their dignity ... Purity is removing the dust of the world from one's heart and mind ... Tranquility comes with the constant practice of harmony, respect, and purity in everyday life. In this state of mind, having found peace and beauty within oneself, a bowl of tea can truly be shared with another.
We need quiet time in the presence of God. Although we want to make all our time time for God, we will never succeed if we do not reserve a specific and consistent amount of time to listen in the Silence. This asks for much discipline and risk-taking, because we often have something more urgent to do and "just sitting there" and "doing nothing" may disturb us more than it helps. But there is no way around this. Being useless and silent in the presence of God belongs to the core of all prayer. In the beginning, we often hear our own unruly inner noises more loudly than God's voice. This is at times very hard to tolerate. But slowly, very slowly, we discover that the silent time makes us quiet and deepens our awareness of ourselves and God. Then, very soon, we start to miss these moments when we are deprived of them, and before we are fully aware of it, an inner momentum has developed that draws us more and more into silence and closer to that still point where God speaks to us.
~ from SEEDS OF HOPE: A HENRI NOUWEN READER ed. Robert Durback