How to be a holy Jew

Does being holy mean walking away from every pleasure in this world? Parshas Kedoshim commands us to be holy, and Chazal read that as separating ourselves. Yet the Yerushalmi says we will have to answer for every permitted food we saw and refused. And why does the Torah follow "be holy" so quickly with respecting your parents?The Ramban draws a line that sorts out the Nazir, who is called holy and also called a sinner. The story is of a man, niftar only a week earlier, who once desperately needed a kidney, and what he did with that need.