Nature reflects the moods of the wizard.
If you want to avoid Alzheimer's disease, sleep 8 hours a night.
The body is a field of ideas and it is a field of interpretations and when you change your experience of your own identity to a spiritual being, the body expresses the physical manifestation of that spiritual reality.
The choices you make today design your future
The world "out there" won't change until the world "in here" does.
So many things happen for every event, and if you try to manipulate it, it means you are struggling against the whole universe, and that's just silly.