The phrase "making light" also has a deeper meaning. When we use humor and laughter to defuse a tense situation, we are using a higher vibration to raise the energy. We are, in fact, making (the situation) light(er). We are lightening the vibration and allowing it to naturally move toward where we want it to be: toward the divine. Digging deeper, making light symbolizes us, as sacred beings, adding our divine light to a dark situation.
Anyway you look at it, making light of a situation not only uncovers the divinity in life, it also is a very human, very healing act. Thank you, Archangel Uriel, for shedding some light on the subject.