Wikipedia
Platero
Platero is a little donkey, main character of Platero y yo ( Spanish for Platero and I), one of Juan Ramón Jiménez's most popular works.
Platero ("silvery") is described in the lyric prose of the book as a "small donkey, a soft, hairy donkey: so soft to the touch that he might be said to be made of cotton, with no bones. Only the jet mirrors of his eyes are hard like two black crystal scarabs."
The little donkey remains a symbol of tenderness, purity and naivete, and is used by the author as a means of reflection about the simple joys of life, memories, and description of characters and their ways of life.