It's also my doubt for the existence of everything
What if everything were imaged, made up by my head and i were crazy or something... idk
How do I know
Yes, (from what I remember), he was calling monades these unities made by an individual and everything they carry in their mind, given that this universe probably just exists in their minds... For instance, you and funsubstance and my cats belong to my monade. But I most probably don't exist outside your mind (your monade). It's really complex and I don't think I'm clear.
What if everything were imaged, made up by my head and i were crazy or something... idk
How do I know
Cause its exactly how I feel all the damn time