This summer I had the privilege of traveling and working in British Columbia, where I hiked close to several massive glaciers. Though they were retreating in the warm weather, they were a formidable force. Their size and presence took my breath away, as did the volume of water that flowed from them into swollen streams and rivers.

Glaciers are slow-moving agents of transformation that have shaped and re-shaped the planet for millennia. And they reminded me change is natural and inevitable. Resistance is also natural and inevitable. And while it may take a very long time to notice the slow, shaping force of a glacier or river or wind, it’s happening in ways we may never fully recognize or see in our lifetime.