Whether you’re a physician, a physical therapist or any type of private practice owner, the day-to-day challenge of running your own business can sometimes ask a lot of you. You’re conscious of the goals of your patients: medical billing, recordkeeping, financial obligations, development, marketing … it’s a mountain of work that sometimes feels insurmountable.

Yes, we all sometimes feel buried in work and obligations. It’s the not-so-glamorous part of being a business owner and an entrepreneur. But the next time you sense this feeling creeping up on you, I want you to think of one man: Dashrath Manjhi.

Manjhi’s story is a few years old, but it’s legendary. He’s a man who saw a mountain of work and charged forth, cutting through it with drive, persistence, and an eye toward his final goal. The goal? To cut through a 300-foot-high mountain of rock. I’m being literal here.

The story goes like this: the hill in question blocked Manjhi’s village from direct access to a nearby city. What should have been a 10K trip became, due to the placement of the hill, a 70-kilometer trek. The removal of this obstacle became a personal mission when Manjhi’s wife died due to the lack of timely medical treatment following an accident. The hospital was just too far away.

Vowing not to let others suffer the same fate, Manjhi spend the next 22 years – from 1960 to 1982 – cutting through the rocky hill using nothing but a chisel, a hammer, and a rope to get the job started. The completed path is a kilometer long and about 16 feet wide, and while it’s a path still being utilized by villagers today, Manjhi’s initial support was nil.

“When I started hammering the hill, people called me a lunatic, but that steeled my resolve,” Manjhi later said.

He died in 2007, but Manjhi’s legend will likely last several lifetimes. Same can be said for the lessons his story teaches about setting goals, overcoming challenges, staying positive and true to yourself, and, yes, occasionally dreaming the impossible. Writer Mousumi Kumar Saha of the site SuccessStories articulates these lessons and a few others here.

I had never hear of Manjhi until just a few months ago, and now I can’t forget him – especially during times when I’m feeling personally and/or professionally overwhelmed. Of course, Manjhi is just one real-life example that displays for us the potential of the human spirit – how “dreaming the impossible” can become “living the probable” through patience, persistence and coordinated drive.

In this vein, readers, I’m curious – what’s your favorite success story?