Aseity

Aseity is a big word that means something can exist all by itself without needing anything else to make it exist. Imagine you have a toy car. It exists because someone made it. But if something has aseity, it would exist even if nobody made it. Think of it like a tree. It doesn't need anyone to make it grow, it just grows all by itself because it has aseity. So, aseity means something can exist without needing someone or something else to make it exist.