Qoraal kooban oo ku saabsan sababta aadan u haysan karin bisad iyo shimbir.
Ma wanaagsana in aad xayawaan shimbir ah iyo bisad labadaba leedahay waayo bisaduhu waxay isku dayaan inay ugaarsadaan shimbiraha, kuwaas oo si dabiici ah ugaarsada bisadaha. Dabeecadda ugaarsigaasi waa wax iska caadi ah, mana ahan wax sax ah in bisadu ay isku daydo in ay barto si aysan u weerarin shimbiraha, maxaa yeelay dabeecadeeda ayay ku jirtaa in ay sidaas sameyso. Si kastaba ha ahaatee, in bisad u ogolaato inay ugaarsato shimbirtaada xayawaanka ah sidoo kale waa wax aan bini'aadanimo aheyn, maadaama ay shimbirta u noqon doonto mid aad u walwal badan oo keeni karta in shimbirta ay dhaawacmaan. Shimbiraha waaweyn sidoo kale waa fikrad xun, waayo shimbiruhu waxay dhaawici karaan bisadda haddii ay isku daydo inay weerarto. Guud ahaan, maaha arin wanaagsan in la helo bisadaha iyo shimbiraha isku wakhti, sababtoo ah uma wada noolaan karaan si fiican, milkiilayaasha xayawaanku waa inay doortaan hal nooc oo kaliya.