There is a bridge connecting Heaven and Earth. It is called the Rainbow Bridge because of its many colors. Just this side of the Rainbow Bridge there is a land of meadows, hills and valleys with lush green grass. When a beloved pet dies, the pet goes to this place. There is always food and water and warm spring weather. The old and frail animals are restored to health and vigor. Those who were hurt or maimed are made whole and strong again, just as we remember them in our dreams of days and times gone by. They frolic and romp all day with one another. The animals are happy and content, except for one small thing. They each miss someone very special to them, who had to be left behind. They run and play together, until the day comes when one of them suddenly stops playing and looks off into the distance. The nose twitches. The ears are up. The bright eyes are intent. The eager body quivers. Suddenly this one runs from the group, faster and faster, leaping and flying over the tall green grass. You have been spotted, and when you and your special friend finally meet, you take him or her in your arms and embrace, clinging together in joyous reunion. Happy kisses rain upon your face; your hands again caress the beloved head, and you look once more into the trusting eyes of your cherished pet, so long gone from your life, but never absent from your heart. And with your pet beside you once again, you cross the Rainbow Bridge together.
-Author Unknown