NOCEBO!

The word of the day is "nocebo" (I don't have enough funky characters to post the pronunciation, but it sounds much like "placebo").

Nocebo:  a harmless substance that when taken by a patient is associated with harmful effects due to negative expectations or the psychological condition of the patient.

Hmm. 

Can we will harmful things into being?

Contrarily, can we will wonderful things into being?

If so, why would we spend so much more time willing the bad things?