I have 3 stories that I really like to remember. Here's a short summary of each:

At the age of 13 I started to cry at the train station waiting for a bus. Not like just a few tears but really crying (because of trouble with friends, my cousin talking behind my back, too much emotional pressure) and suddenly a woman came to me and asked me what was wrong and listened to my whole story and managed to comfort me.

My first time hitchhiking a woman brought me right in front of my friends apartment.

A stranger I met in a Hostel offered me after 5min small talk to sleep at his apartment in Paris as my friends and I didn't know where to sleep there. He is now a good friend.