There is a story Attar has written of Persia which explains this idea beautifully. There was a king and he had a beautiful parrot. The king and queen loved it, was pet and talked with it when had a moment free. Was kept in golden cage. No end of attention given to it, queen loved it, king admired it. One day when king was going to forest he asked parrot, "Going to same forest from where brought you, have any message to give to others in forest?" Parrot said, "Very kind of you, king, pray tell them that I am kept in the cage and am very kindly treated. But my constant yearning is to see myself flying free in that sphere and among you all." The king said, "Yes, I will give your message".