This summer, for the first time, our son has been afraid of thunder and lightning. I can't blame him for that. Thunder and lightning can be scary. Especially when you are small, and you don't remember ever having experienced them before. At times like those, even the comforting presence of your stuffed animals isn't enough: you need a parent to cuddle you and tell you everything's going to be okay.
So that's what I do. I tell him it's all going to be okay. I tell him it's only thunder, it's only lightning, it's not going to hurt him. When the lightning flashes, I tell him it's the clouds playing with their flashlights, just like he does. When the thunder cracks and rolls, I tell him it's the clouds playing their drums.
This is probably proof, if proof were needed, that I am a poet and not a scientist. I think in metaphors. We have friends who teach their kids about electrical charge building up in the clouds. I make up stories about the clouds having parties with their flashlights and their drums.
I did learn something extraordinary about lightning this summer, though.
And because they say the best way to learn something is to teach it to someone else, I'm going to share it with you now. Here is what I learned about lightning, in a class on kabbalah and quantum physics which I took with R' Fern Feldman and Dr. Karen Barad at the ALEPH Kallah:
In a stormcloud, air molecules become polarized. The negatively-charged ions cluster at the bottom of the cloud, and the positively-charged ones cluster at the top.
You know how if you hold two magnets near each other, the ends which have the same charge will push each other away? The same thing happens with the stormcloud and the earth. The negative ions at the bottom of the cloud push the negative ions in the ground further into the ground, because like repels like.
The negative ions in the earth sink down low, moving away from the cloud. So the surface of the earth becomes positively charged. Now the earth and the cloud are charged in opposite directions: positive earth, negative cloud.
Here's the wild part: as the cloud sends electricity down, the earth sends electricity up. Before the lightning ever comes down from the cloud, the cloud is reaching down with its negative ions and the earth is reaching up with its positive ions.
If you look at time-lapse photography of lightning, this is what you see: the cloud sends little rivulets of light downwards, and the earth sends rivulets of light upwards. They are reaching for each other. And when they connect, most of the light goes up.
The moment I learned this, I thought about spiritual life. I thought of the story from Torah about Jacob camping out for a night and dreaming about a ladder with feet planted in the earth and a top stretching into the very heavens, with angels going up and down the ladder in constant motion. One of my favorite teachings asks: it makes sense for angels to be coming down the ladder from heaven to creation, but what's with the angels going up? And the answer is: the angels going up are our prayers. When we pray, our prayers become angels which ascend this cosmic ladder, and in response, blessings come pouring back down.