题解《老子·第一章》便作恍惚言: 玄之又玄,众妙之门。道家因此被称为“玄门”。“玄”难确训,不妨心解。何谓“玄”? 难言、不可言、言则失其本身之“象者”,谓“玄”。笼罩一切、约制一切,无所不在、无始无终而又无形无踪者,谓“玄”。万物因之以生、因之以成、因之以灭的“律”,谓“玄”。 Inscribed “Lao Tzu first chapter” will be trance words: mysterious and mysterious, the wonderful door. Taoism is therefore called “Xuanmen.” “Mysterious” difficult training, may wish to understand. What is “mysterious”? Unspeakable, unspeakable, words are lost its own “elephant”, that “mysterious.” Cover everything, everything about the rule, everywhere, there is no beginning and no end without a trace, that “mysterious.” All things are born of health, and as a result, the “law” of destruction is called “mystery.”