One thing I do at work is send out an email daily about what's going on in the office, who's where, etc. Each year I do something fun in this email, one year it was trivia questions, one year it was comic strips, this year it's quotes. This is the quote I put in today's email:
"A true friend is one soul in two bodies." Aristotle
Totally, the concept of kindred spirit. I would say in my life, I have had 4-5 friends who fall in the kindred spirit category. When you find one, it's for ever. All of time and space can't change that.