In his very deep way, the Bet HaLevi explains the power of Sinat Hinam/baseless hatred. He quotes a concept brought down in the Ramban, at the beginning of Bereshit . The Ramban says that when God created the world, two terms were used: Beriah and Yetzirah . Beriah is loosely translated as “ to create ,”and Yetzirah means “to form . ” The Ramban explains that when God created the world, He first had to make something from nothing, which he describes with the Greek term called Koach Hee yu lee ( the heeyulee force). In modern Greek, there is word like that: Hyle (pronounced hile ), and according to Wikipedia in Greek philosophy, hyle refers matter, or stuff. The Greeks originally had no word for matter in general ( as opposed to raw material suitable for a specific purpose), so Artistotle adapted this word hyle for this purpose, in order to express the idea that everything physical is made of the same basic substance. This idea holds up well under modern science, although it may be thought of more in terms of energy or matter-energy ( Wikipedia) This is the force that the Ramban quotes as a Greek philosophy, but we believe that God made something from nothing and He created this force called the First Matter . And after God created the First Matter, He then formed everything into what we have today. Think of it as a Table of Elements of sorts, from which God continued to develop the world. But, of course, God created that original matter. The Bet HaLevi says that when it comes to sins, we have the same concept- Sinat Hinam is the “ hyle ” of all horrific sins that will ever be in the world. That’s why Sinat Hinam is so detrimental. When someone hates, he creates, to a certain degree. The “ matter ” for sin is Sinat Hinam. That’s why there is no end to this sin. It’s a “sin that is not revealed,” because this “hyle” isn’t something tangible that you can put your finger on- but look what grows from it afterwards. It’s why our Galut continues to grow. There is no end to the possibilities that can come from the original matter of Sinat Hinam , and that’s why it’s so severe. This is a phenomenal concept: every time someone has Sinat hinam/ baseless hatred, he becomes a creator of matter of future sins between man and his fellow man. Therefor to stop it, you have to stop creating that matter to begin with. Have a wonderful day.