Remember that there are only three kinds of things anyone need ever do.
The path of earlier age wisdom was to attempt to live in conformity with the unyielding reality. Modernity, or applied science, has approached reality as a malleable natural world - something we can shape to fit our desires. Our current mindset seems to be generally focused on a search for new power sources, and in the case of the Bloom Box we are truly creating power out of thin air. Now I realize I'm stretching by trying to connect these three things in my mind, but in very general ways C.S. Lewis's passage is a reminder of the possible split between a mindset of efficient creation of power versus using science to help us in our efficient use of power.