This beautiful poem has written by Hannah Flagg Gould. she was an american poet. She early wrote for several periodicals, and in 1832 her poetical pieces were collected in a volume. her work includes Esther: A Scriptural Narrative , The Golden Vase, a Gift for the Young , The Youth's Coronal and etc.
In this poem the character wrote her name in sand which is washed away with the coming tide. She is thinking that nothing is immortal in this world. In few moments the name washed away and she was thinking about fleeting moments going from her.