古代思想家认为,宇宙的本原是一团混沌之气,即元气,由于元气的运动变化,产生了性质对立相反的阴阳二气:阳主动,阴主静;阳化气,阴成形;阳气升腾而为天,阴气凝结而为地。即《内经》所谓“积阳为天,积阴为地”。天气 Ancient thinkers believe that the primitive nature of the universe is a group of chaos, that is, strength, due to changes in the strength of the movement, resulting in the opposite nature of the opposite yin and yang: Yang active, yin and yang; Yang gas, overcast; yang Ascended the sky, Yin Qi condensation and for the ground. That is, “Nei Jing” the so-called “Cumulus as God, accumulate Yin for the land.” the weather