Ukuqala kwekwindla lixesha leshumi elinesithathu lelanga kwi "Twenty-Four Solar Terms" kwaye lixesha lokuqala lelanga ekwindla. I-Dou ibhekisa kumzantsi-ntshona, ilanga lifikelela kwi-135° ecliptic longitude, kwaye lidibana nge-7 okanye i-8 ka-Agasti kwikhalenda kaGregory minyaka le. Utshintsho lwendalo yonke yinkqubo eyenzeka kancinci kancinci. Ukuqala kwekwindla lixesha lokutshintsha xa i-yang qi incipha kancinci kancinci, i-yin qi ikhula kancinci kancinci, kwaye i-yang qi itshintsha kancinci kancinci ibe yi-yin qi. Kwindalo, yonke into iqala ukukhula ukusuka ekuchumeni ukuya ekubeni mnyama kwaye ivuthwe.

Ukuqala kwekwindla akuthethi ukuphela kwemozulu eshushu. Ukuqala kwekwindla kusesekwixesha elishushu, kwaye ihlobo alikaphumi. Ixesha lesibini lelanga ekwindla (ukuphela kwehlobo) lihlobo, kwaye imozulu isashushu kakhulu ngexesha lokuqala kwekwindla. Oko kubizwa ngokuba “bubushushu bukwii-volts ezintathu”, kwaye kukho isaci esithi “i-volt enye emva kwekwindla”, kwaye kuya kubakho ubuncinane “i-volt enye” yemozulu eshushu kakhulu emva kokuqala kwekwindla. Ngokwendlela yokubala ye-“San Fu”, usuku lwe-“Liqiu” ludla ngokuba sekwixesha eliphakathi, oko kukuthi, ihlobo elishushu alikapheli, kwaye ukupholisa okwenyani kudla ngokuza emva kwexesha lelanga leBailu. Indawo eshushu nepholileyo ayikokuqala kwekwindla.

Emva kokungena ekwindla, itshintsha ukusuka ehlotyeni elinemvula, elifumileyo nelishushu iye kwimozulu eyomileyo neyomileyo ekwindla. Kwindalo, i-yin kunye ne-yang qi ziqala ukutshintsha, kwaye zonke izinto ziyawohloka kancinci kancinci njengoko i-yang qi isiya isiba. Utshintsho olucacileyo ekwindla kuxa amagqabi etshintsha ukusuka kuluhlaza oluluhlaza ukuya kumthubi aze aqale ukuwisa amagqabi kwaye izityalo ziqale ukuvuthwa. Ukuqala kwekwindla yenye "yexesha leeholide ezine kunye nemibhiyozo esibhozo" kumaxesha amandulo. Kukho isiko phakathi kwabantu lokunqula oothixo belizwe nokubhiyozela isivuno. Kukwakho namasiko anjengo "ukunamathela amafutha ekwindla" kunye "nokwindla elumayo".