Henry Jackson van Dyke was an American author, educator, and clergyman. Among his popular writings are the two Christmas stories, "The Other Wise Man" (1896) and "The First Christmas Tree" (1897). Various religious themes of his work are also expressed in his poetry, hymns and the essays collected in Little Rivers (1895) and Fisherman's Luck (1899). He wrote the lyrics to the popular hymn, "Joyful, Joyful We Adore Thee" (1907), sung to the tune of Beethoven's "Ode to Joy". He compiled several short stories in The Blue Flower (1902), named after the key symbol of Romanticism introduced first by Novalis. He also contributed a chapter to the collaborative novel, The Whole Family (1908). One of van Dyke's best-known poems is titled "Time Is" (Music and Other Poems, 1904), also known as "For Katrina's Sundial" because it was composed to be an inscription on a sundial in the garden of an estate owned by his friends Spencer and Katrina Trask. The second section of the poem, which was read at the funeral of Diana, Princess of Wales.