Reality is ugly and messy, often overwhelming and frought with confusion and contradictions. Nothing is clear and everything is a meld from the most sublime to the most profane. Nothing is separate from anything else and everything is part of the whole of reality, connected, related and intermixed with everything else.
It's far easier to forget it and live in a simple fantasy where everything is neat and clean. It allows us to sleep, deceived by our own intentional blindness of the vast richness of reality. It is easier to avoid understanding than to attempt to understand with the possibility of becoming a greater person.
Simplicity is always the easier choice and fantasy the safer place because it frees us of the reality of the world.