I am a person who is always grateful, and always from the heart, because I believe that gratitude is an extremely important thing, a very powerful energy that makes the universe bring us more positive things. I always say thank you. I don't always receive them, not all the time, but in many important matters, jobs, guidance in a problem, a chat between friends, and that thank you feels so good....
Recently something strong happened to me: I helped someone with a suggestion of something I learned in my life, the person followed my suggestion and told me .... you saved my life... literally, it was enough for me, it filled my heart.
Saving someone's life is a big thing so well done on that, I'm sure their gratitude to you was genuine and happily given.
It was, I assure you I felt immense happiness.