It begins with the line "Thou has made me endless, such is thy pleasure."  
Six of them, including "When I bring you colored toys" and "Light my light" were set by composer John Alden Carpenter to music.  This collection of poems centers on the concept of Jivandevata, or "Lord of my life," and most of its contents are dedicated to reuniting the poet with a deity.  It begins with the line "Thou has made me endless, such is thy pleasure."  With an introduction by W. B. Yeats, this work helped earn its author the 1913 Noble Prize for literature.  FTP, identify this collection of poems by Rabindranath Tagore, whose name means "Song Offerings."
Six of them, including "When I bring you colored toys" and "Light my light" were set by composer John Alden Carpenter to music.  
Gitanjali