‘Passengers’ is an acrobatic ride on the train of life, with the beautiful and unexpected along the way

Envol Cimon Parent The 7 Fingers circus troupe on performance. Its “Passengers” is in Cambridge through September.

Ever bemoaned the slow waits of the MBTA or the commuter rail, or perhaps taken for granted the convenience of train travel? “Passengers,” a circus show by the troupe The 7 Fingers, may have you feeling differently, and perhaps even reflecting fondly on the intimacy and power of train travel.

Shana Carroll, the writer, director and choreographer of “Passengers” – a multiform show of acrobatics with music and text – explores train travel as “a metaphor for a lifetime, and all the beautiful, unexpected things that happen along the way, and the times when the ride is cut too short, and sad departures and happy arrivals.”

Carroll remembers train travel as a place for interconn