When Tomas gave his speech, the heating system was not working correctly. Knowing that his audience felt hot and cranky, Tomas began his speech by saying, "I know we are all very uncomfortable from the temperature. But I want you all to close your eyes and imagine the heat coming from the sun while you are lying in the sand listening to the waves at one of my favorite vacation spots, Siesta Key Beach in Sarasota, Florida!" The class became energized, and Tomas was able to keep his audience's attention. Why?