Most human beings know that they eat to survive, but there are many, especially in Western society today, that survive to be able to eat. It becomes almost logical that the Torah, would suggest and ordain for us a list of foods that somehow would prove harmful to our spiritual health.
One of the more distinguishing life values which Judaism advocates is the type of food that a Jew eats. Perhaps no other area of Jewish life has evoked so much scholarship and divergence of opinions.
Why do bad things seemingly happen to good people?
Nadav & Avihu's death arises a hard question: why do bad things seemingly happen to good people? And there is a corollary question involved here as well – why did tragedy strike then and there?