WHAT IS A TRUE FRIENDSHIP?

http://www.youtube.com/watch?v=HjWtRYaxmWM&feature=related
DESCRIBE WHAT IS A TRUE FRIEND? WHAT DOES THAT MEAN?
VINÍCIUS DE MORAES SAYS THAT FRIENDS ARE WHAT MADE HIM MOVE ON WITH LIFE. THE SIMPLY KNOWLEDGE TO KNOW THEY EXISTED MADE HIM HAPPY!
WHO IS YOUR TRUE FRIEND?
GIVE ME ADJECTIVES...