What is the reason behind the precept against eating plants such as onion and garlic?
Onion and garlic are among the Five Pungent Plants. When eaten raw, they make us get angry easily. When eaten cooked, onion and garlic act as aphrodisiacs, arousing sexual desire. Moreover, the bad breath resulting from eating these plants drives away good deities. Evil deities love the smell and will come to lick your mouth!