What inspired the song yellow by coldplay?

Chris Martin, the lead singer of Coldplay said in an interview with VH1 that the song "Yellow" was inspired by a photograph he saw of a field of yellow flowers. He was so struck by the image that he wrote the song about it, and the line "Look at the stars/ Look how they shine for you/ And all the things that you do" was inspired by a line in the poem "The Little Prince" by Antoine de Saint-Exupéry, which talks about how the stars shine for each person individually.