11.   His mind began wandering, and suddenly the muse struck.

12.   His mind began to drift.

13.   His mind begins to wander.

14.   My mind began to wonder.

15.   My mind began to ask mean little questions.

16.   Once the fund raised the roof, however, minds began to change.

17.   Plopped down in a vacuum of pressure, reawakened to the predatory world inside the lines, his mind began to swirl.

18.   The insecurities kick in and her mind begins to spin.

19.   We have relived and re-examined so much of World War II in the past few years that our minds have begun playing tricks on us.

20.   With so little stimulation, your mind begins to feed on itself, time stretches out, and your senses start picking up peripheral sounds and images.