Both Parshat Tazria and Metzora discuss skin ailments on one’s flesh, who to see about it (the Priest), how to treat it (isolate it), what to do if it spreads (isolate yourself), and so on. While we get caught up in the details of the treatments, we might fail to realize how strange all of this is. This is the first time the Torah discusses personal physical hygiene. Why would the Torah spend almost two entire Parshiot (multiple Parshas) on personal hygiene?
Rabbi Munk in The Call of The Torah explains that by giving these afflictions so much attention, the Torah points to them as examples of the spiritual causes at the root of many illnesses (in our case, Tzaraas – the affliction discussed in the Parsha – is caused by one of seven sins: Slander, murder, perjury, debauchery, pride, theft and jealousy (Talmud Arachim 16a)). As the Rambam (Maimonides) asserts, the best medication is based on ethical values, helping to re-establish harmonies between spiritual and physical forces (Guide to the Perplexed 3:27). That way, even if our physical ailments aren’t ultimately cured, at least we’re in harmony within ourselves. This discussion is meant to remind us that illness is sometimes spiritual, and that it’s connected to our physical well-being. As such, we should feed our bodies, so long as we nurture our souls.