Of all the things that were possessed by the trinity fragment whether it was human or simply an object, only Ming Yue Yin got the trinity fragment favor. Therefore, when Ming Yue Yin fled from reality to dreamland, the trinity fragment protected her soul and shared memories of the past owner with Ming Yue Yin.
In the end, after considering the fate that involved Ming Yue Yin's family with the trinity fragments for generations Lory leaves a little power of the trinity fragments as a "Gift" as a gratitude for all Ming Yue Yin's ancestor has done for the fragments that reside inside the white tree.
As a result, Ming Yue Yin's body, which should have been wrecked by years of consuming too many pills and elixirs since childhood, remained healthy and even allowed her body to absorb more Qi which caused her to quickly increase her cultivation.