This warmth was passed on to the people who came later, as well as to everyone in the carriage. the meaning of this sentence

"Kacha-hu", a sharp sound, a cold wind, and a torrential rain caused a series of exclamations in the stuffy and crowded carriage. It turned out that the cracked window glass in the front row of the rear compartment had been blown away by the sharp turn of the bus. Fortunately, it did not hurt anyone.
After a flurry of activity, one of the passengers said,"Bad luck early in the morning!" "Taking a bus now, really…"
The young female ticket seller at the back door stood up without a word and walked to the glass window with a red face. A blind couple sat in silence, holding hands. The rain had already drenched their faces and front lapels. The girl's face turned even redder. She quickly opened the flower folding umbrella in her hand and blocked the hole.
The carriage suddenly fell silent, and everyone's eyes softened.
"I'm sorry, masters. This glass should be replaced. "Blame us..." The girl was halfway through her words when a gust of wind blew her petite body back half a step, and she swallowed her words. At this moment, a large hand grabbed the umbrella handle and helped her push it forward. With a hissing sound, the umbrella was torn open by a sharp glass. One of the umbrella ribs was broken, but the hole was sealed again. "Yo--" Amidst the passengers 'cries of regret, the girl smiled gratefully at the forty-year-old man beside her with an apologetic expression. She smiled so much that her eyebrows curved.
"You go, I'll do it!" The red words on the man's chest told people that he was a steel worker. His voice was as sonorous and powerful as metal clashing.
The girl went to call for tickets again, but her voice was sweeter and brighter.
"The glass window is fixed?" the blind couple asked.
"The rain has stopped." the burly man replied.
"That's good."
The passengers all smiled kindly, and the car seemed especially warm.
The bus passed two more stops. A young man who was memorizing a foreign language next to the burly man suddenly stretched out his hand and said,"You should get off the car. Leave it to me!" "How did you know?" "We're all old passengers." "Then, haha…"
After another two stops, the young man was about to get off the bus. A female comrade was about to take it, but the umbrella handle was hurriedly snatched away by a pale-faced student. The surrounding people laughed again.
One stop after another, one person after another. The umbrella handle felt warm in everyone's hands. This warmth was passed on to the people who came later, as well as to everyone in the carriage. (From the short novel "Umbrella")

Answer 1

This sentence described a scene where warmth was transmitted. Everyone in the carriage was infected by this scene and felt warmth.

Its meaning could be understood as: a positive, caring, caring, helping, and other warm behavior or atmosphere that could be passed on to future generations, bringing warmth and comfort to the people around them. Such a warm atmosphere could motivate people to do positive and beneficial things and help them overcome difficulties, increasing their confidence and courage.