One of the many elements of Dorothy Heathcote's Mantle of the Expert approach that can inspire all sorts of lessons, not just those which utilize drama-for-learning methods, is her concept of productive tension.
Productive obsession--how often do our lesson plans engage our students to this level?
This idea of productive obsession reminds me of Mihaly Csikszentmihalyi's ideas of flow pronounced in his book Flow: The Psychology of Optimal Experience. In his Introduction this concept is described:
The optimal state of inner experience is one in which there is order in
consciousness. This happens when psychic energy--or attention--is invested
in realistic goals, and when skills match the opportunities for action. "Flow"
is the way people describe their state of mind when consciousness is harmoniously
ordered, and they want to pursue whatever they are doing for its own sake.