Blowing the shofar is an intensely primal experience that connects you with earth and sky. There is a lot of sensory engagement in keeping mitzvahs, but the shofar takes this to a very high level. It’s a ram’s horn or a kudu horn, it smells like an animal horn.
“There’s something very primal and earthy and wild about it,” writes Jordia Gerson. “It has a similar smell to the smell that you get when you open a Torah scroll, since a kosher Torah scroll is made of animal skin. They both smell like animal…”
So many areas of our lives are unnaturally sanitized today. We live in closed, climate-controlled environments, with air filters and ionizers. In fact, some scientific research, the Hygiene Hypothesis, even suggests that our super clean and sanitized environments may actually be making us sick!
In high school and college, I used to go on three- and four-day backpacking trips. One summer a friend and I went into the Sierra Nevado Mountains for a 10-day jaunt. After about a week of zero exposure to cleaning solutions, car exhaust, air conditioners, etc. I started picking up subtle smells in the world around me. Not just pine needles and fields, but even tree bark and boulders from several feet away. The kinds of smells dogs and cats and horses are attuned to, but which escape the senses of modern man.
Perhaps the shofar is a hedge against becoming overly sanitized, something like working in the garden and getting dirt under your fingernails.
Blowing the shofar bonds you with nature. Arguably, the shofar is meant to be blown outdoors. All of the shofar blowing described in Tanach occurred in the open air. The shofar horn is a signaling device meant to be heard over long distances. There would be no need to sound it in the generally small rooms of Biblical-era structures.