
Tao: The Watercourse Way is a 1975 non-fiction book on Taoism and philosophy, and is Alan Watts' last book. It was published posthumously in 1975 with the collaboration of Al Chung-liang Huang, who also contributed a preface and afterword, and with additional calligraphy by Lee Chih-chang.
The other concept indicated in the last paragraph on "results tank" not "effort tank" is lust of result. There aren't as many sources discussing this topic directly, but Zen in the Art of Archery [2] is good, as is Watts' Way of Zen [3].
I highly recommend them all for anyone interested in creating things.
[0] http://www.amazon.com/Tao-Watercourse-Way-Alan-Watts/dp/0394...
[1] http://en.wikipedia.org/wiki/Wu_wei
[2] http://www.amazon.com/Zen-Art-Archery-Eugen-Herrigel/dp/0375...
[3] http://www.amazon.com/Way-Zen-Alan-W-Watts/dp/0375705104
