This research studies teachers' experience with the concept of "flow." Flow can be described as a state of being in which one is fully engrossed in the activity. When activities are in "flow," there is a sense of immersion, high energy, joy, and focus. In an analysis of fifteen teachers' reflections of flow experiences, five prominent characteristics emerged: engagement, authentic and meaningful experiences, relationships, learning environment, and flexibility and risk-taking. Recognizing the classroom conditions under which flow may occur could assist teachers in creating effective and engaging learning environments. Our research supports the idea that flow is not only desired but something that can be fostered.