I wish I would remember this question right when challenging situations arise in my life, not after them.
This question transfers us almost instantly to an elevated state of being. It re-orders consequences and gives us perspective. It shines a spotlight on the ripple effect of a yes, a no, or an outburst.
Asking this question brings forth the more powerful, rational, and empowered version of ourselves. We ask that best version or Self with big s to take over. We ask the Self to protect us from falling into the temptations of immaturity, impulsivity, and immediate gratification.
We need to remember that we have that Self inside of us at all times. We can call upon it using powerful questions like this one.
For good measure, I would add a little prayer, too.