Notions

From "The All-True Travels and Adventures of Lidie Newton" by Jane Smiley:

“One thing I’ve noticed is that when a particular notion enters your head, then its very particularity makes everything tend toward it, and the tending goes faster and faster. One day you will have barely thought of something, and that little thought inspires such excitement and fear that you don’t want to think of it again, but some few days later, maybe three or four, the thing you could hardly think of is now done, and you are embarked upon a new life.”