Hypnagogia: 虛無

先天一气自虚无中来. 乃主体之虚无, 非客觀之虛無. 其實是: 先天一氣, 自自 虛無中來. 在意识恍惚似醒似睡間的活子时興陽起修, 只是男子生物性的life hack (‘盗‘),連女性都不通用(男依日, 女象月, 天癸論), 何以大言先天地而生, 以小中華之人類代物質宇宙發言?

 “玄关者，神炁交媾之灵光。初见玄关，明灭无定。初入玄关，惝惚无凭。以其神炁乍合，未能固结也。到得交抱纯熟，死心不离，始识玄关之中，人我皆忘，鬼神莫測。浑浑沌沌，兀兀腾腾。此中玄妙，交化万端，不可名状" -  <李涵虛: 玄關再論>

When you relax you are more in a parasympathetic state. This causes more nitric oxide to be produced and your blood vessels dilate. so dont worry it just means you are in a relaxed state!  

(Hypnagogic microdream devices (MIT))

https://motherboard.vice.com/en_us/article/ywxjvg/steel-ball-control-dreams-dormio-mit-hypnagogia