It carries with it the joy and mutual understanding that makes life colorful, interesting and rewarding. You can never replace a friend and if you're fortunate enough to have several friends you will find that they are all different. No one has a double in friendship. Friends can make all the difference in the world. If you're facing a mountain and there's a friend to help you the mountain will shrink to half the size.
Friends double our joy and divides our load.
In Mark 2 we have this thought explained. We have there the incident where the palsied man's friends helped him even to the point of uncovering the roof to get to the place where Jesus is and to help their friend's need. One of the most outstanding human friendship recorded in the scriptures was that of Jonathan And David. So Jonathan's very soul became bound up with the soul of David and Jonathan become to love him as his own soul. It means to have one friend you must be one.