Holiness is meant to pervade all of daily behavior, not to inhabit the high points of experience only. Love means reaching out toward neighbors and the world with the same care, regard and generosity we normally reserve for ourselves and those closest to us.
It is a simple yet profound challenge -- be holy, imitate God in our own lives. It is the fundamental lesson that for Jewish civilization, the ultimate goal of life is not "happiness," it is "holiness."
God tells Moses to tell Aaron not to come before the Holy of Holies regularly -- so that he will not die like his sons Nadab and Abihu -- because the Divine Presence appears there as a pillar of cloud always.