A friend walk in when the rest of the world walks out；

Sometimes in life, 
You find a special friend;

Someone who changes your life just by being part of it；

Someone who makes you laugh until you can't stop

Someone who makes you believe that there really is good in the world
Someone who convinces you that there really is an unlocked door just waiting for you to open it.
This is Forever Friendship

and the world seems dark and empty,

Your forever friend lifts you up in spirits and makes that dark and empty world suddenly seem bright and full

Your forever friend gets you through the hard times,the sad times,and the confused times.

If you turn and walk away,

Your forever friend follows,

If you lose you way,
Your forever friend guides you and cheers you on.
Your forever friend holds your hand and tells you that everything is going to be okay.
And if you find such a friend,
You feel happy and complete,
Because you need not worry,
Your have a forever friend for life,
And forever has no end.

This  was referenced  from others,  because  i like it very much ,which also reflects my understanding of friendship