Musar על בבא בתרא 149:15

Regarding this our Sages of blessed memory said: "this teaches each person is burned from the Chupa (canopy) of his fellow" (Bava Basra 75a). This [burning] does not refer to jealousy which falls only to people lacking in understanding as I will explain with G-d's help. Rather, it is due to seeing oneself lacking from the perfection that he was capable of attaining just as his fellow had attained it.