Jellies over 40, (and under if you remember before the intranet age.) About correspondence.

I was sending an email today and I wanted to express my heartfelt affection for a relative that I have recently met. It seemed that the most appropriate word to end the message was “sincerely.”
In my day of writing letters, that word was just a standard ending to a letter. In the intranet, text and go age, it felt, when I was writing it, to mean so much more. It was almost like, in this fast paced world, that word took on more intimacy (not in a sexual sense) than ever before.
Does anyone else see more meaning in simple words or phrases like this as they get older or am I just a nut case? I attribute it to the current rapid communication but I could just be getting old.