The definitive line between friends.......

So recently I have took a long hard look at the word friendship. What does it really mean to be a good friend? Having all the right answers? Being there? Trustworthy? Or just someone who can sing the song to your heart when you forgot it? But then there is a line between a friend and a best friend...... A friend is someone you say hi to every once in a wile and a maybe hang out ever so often.....But a BEST friend is someone you can tell any thing to that when you call them they make time to lision even if its just for 2 mins......this person is someone who knows you ....who can tell when your mad...can tell when your faking it and can call you out on it....but they will never tell you you cant make it....your not good enough.....and what makes them such a great friend is you would do the same for them in a heart beat....no questions asked....