Dōgen’s Shōbōgenzō: what is zazen?what other contemporary practices was zazen supposed to be the superior alternative?what are its practical details, and in what way does it aid the practitioner in the attainment of realization?what, for Dōgen, secures its utmost spiritual efficacy?

Dōgen’s Shōbōgenzō what is zazen?What other contemporary practices was zazen supposed to be the superior alternative? What are its practical details, and in what way does it aid the practitioner in the attainment of realization? What, for Dōgen, secures its utmost spiritual efficacy?