Dani Shapiro

I am devoted to my husband and son. I am devoted to the practices and rituals that imbue our lives with a sense of meaning and purpose, that help me to live my days in the most emotionally and intellectually productive manner. I am devoted to the idea of devotion itself.

I was raised in an observant Jewish household, so for me, Hebrew prayers - the sounds, the sunlight streaming in from the stained-glass windows of a synagogue - bring my father back to me as surely as if he were sitting next to me, my head pressed against his shoulder.

The idea of critical windows extends beyond just vision, of course: almost every system in the brain has a critical window when it needs to experience certain stimuli, or it won't get wired up properly. The most obvious example is language: if you don't learn a language early on, it's nigh impossible to become truly fluent.