One day you’ll notice your mom’s hands look like your grandma’s. Hold them before that day surprises you.

Change in the people closest to you happens below the resolution of daily life, so you can see somebody every day and notice nothing for years. Then one afternoon the light hits right and you see the whole passage of time in a detail as small as a pair of hands. The change was always underway; only the noticing is sudden.

Waiting for that moment is not required. Sit next to whoever raised you this week. Take a photo of their hands. Ask them something you have never thought to ask.