Lub luag haujlwm nruab nrab racking yog ib hom kev ua haujlwm siab ntev ntev racking, uas tau siv dav vim tias nws muaj peev xwm ua tau zoo thiab muaj peev xwm nqa tau.Txawm hais tias nws khaws cov khoom, cov khoom siv raw, cov cuab yeej, cov ntaub ntawv, cov khoom siv hluav taws xob, cov ris tsho, cov khoom tsim, lossis cov khoom tiav, xaiv qhov chaw cia khoom yuav ua rau muaj qhov sib txawv loj hauv koj qhov kev ua tau zoo thiab kev tsim khoom.