This little story touched me profoundly.Often, when he came to visit, my grandfather would bring me a present. These were never the sorts of things that other people brought, dolls and books and stuffed animals. My dolls and stuffed animals have been gone for more than half a century, but many of my grandfather's gifts are with me still.
Once he brought me a little paper cup. I looked inside it expecting something special. It was full of dirt. I was not allowed to play with dirt. Disappointed, I told him this. He smiled at me fondly. Turning, he picked up the little teapot from my dolls' tea set and took me to the kitchen where he filled it with water. Back in the nursery, he put the little cup on the windowsill and handed me the teapot. "If you promise to put some water in the cup every day, something may happen," he told me.
An Unusual Gift From My Grandfather — by Rachel Naomi Remen
https://www.awakin.org/read/view.php?op=audio&tid=2376