India, April 22 -- The love for marathons has grown rapidly in recent years. Parks, roads and city tracks are now full of people running distances that once seemed impossible. I was no different. At the age of 44, settled in the dental profession and leading a busy life, I decided-almost suddenly-to run a 21-km half-marathon. I had always enjoyed sports, but long-distance running was new to me. Five kilometres had been my comfort zone. Twenty-one kilometres felt daunting. Still, with a mix of excitement and fear, I filled out the online form for the Airtel Delhi Half Marathon. I often wondered why it was called a half marathon at all. Perhaps the word half exists only to give beginners like me the courage to begin. Two months before the race, I stood on the dusty HUDA grounds in Ambala, where I trained each morning. A question kept troubling me: How does one increase endurance in such a short time? That was when help arrived, quietly and without announcement. I met a young man from the Border Security Force, home on a short vacation from a nearby village. He wore worn-out running shoes, said very little, but watched everything. When I told him about my plan, he smiled and unexpectedly offered to guide me. At that moment, I realised that help doesn't always arrive as advice-sometimes it comes as a stranger who takes your goal more seriously than you do. He corrected my running posture, guided my breathing, and spoke at length about recovery. At my age, he reminded me, an injury could take weeks to heal and quietly derail the entire effort. Stretching, pranayama (deep breathing) and rest were given as much importance as running itself. For a month, six days a week, he trained me with discipline and patience. Distances were increased gradually, never rushed. By the time he returned to duty, I had reached 15km and felt mentally steadier than before. But his absence made a difference. Without him watching, I found myself negotiating with my own effort. My progress slowed, and I stayed at the same distance for weeks. That phase taught me something uncomfortable: A coach does not only push you to run farther; he pushes you to be honest with yourself. The Sunday before the race, I finally ran 20km on my own. That run silenced most doubts. The final week was spent resting, running short distances, and trusting the training he had given me. On race day, I completed the half-marathon in two hours and 15 minutes. For a first-timer like me, it took a while to sink in that I had actually done it. I wanted to share the moment with my mentor, but I could no longer reach him. His number was lost. Some people don't stay in our lives forever. They arrive, prepare us for a challenge, and quietly move on. Looking back, I realise the race mattered less than the person who prepared me for it. That was 11 years ago. I am 55 today. Since then, I have run several half marathons and two full marathons. And every time I lace up my shoes, I realise how much of that first run still belongs to him....