“That’s all it takes!” Megan said. She had clipped a stem from her geranium plant, dipped the cut end into honey, and stuck it into a pot filled with compost. Megan was teaching me how to propagate geraniums: how to turn one healthy plant into many plants, so she would have flowers to share with others. The honey, she said, was to help the young plant establish roots.

Watching her work, I wondered what kinds of things help us establish spiritual roots. What helps us mature into strong, flourishing people of faith? What keeps us from withering up or failing to…