The Way of Zazen, by Shodo Harada Roshi

Discussion by Shodo Harada Roshi of the following from Hakuin Zenji:

For those who wish to enter deep samadhi, it is best to put down thick cushions, sit in full lotus and wear loose clothes. Make your spine straight and your posture erect but comfortable. Begin by doing susokkan, the best possible way for entering deep samadhi, focusing your ki in your tanden. Next, concentrate intensely on your koan until you dig out the roots of your self-conscious awareness completely. If you then continue to practice zazen day after day, kensho will be realized as certainly as you hit the ground when you strike at it. Put everything you have into it.