The love for animals is a deep, natural bond, free from all the prejudices and conditionings of the love between human beings. For Giorgio it started to be so when, on a cold morning of January, he meets Lupa, a dog with whom he shares many happy years, full of adventure and outdoor walks, becoming true life companions. The one bond between them is a true friendship, special, such as the one that binds many human beings to their animals who share with them their lives, in a reciprocal exchange full of emotions and deep feelings until, as narrated by an old Indian legend, the animals, after having left us, they run over the Rainbow Bridge, that connects the Earth to the Heaven, and beyond which, in a beautiful nature, they will return to live happy and healthy, waiting to be reunited with their human friends. The author, with his words, with his touching stories, moves us so much so that in his relationship with Lupa comes back to memory the atavistic bond between man and dog, now ennobled by deep and unalterable feelings.