"Lucasta" is of Latin origin meaning "Pure Light". Besides the dedication of the first poem to his wife, Anne Lovelace, this selection of poems are written from the viewpoint of a soldier who is going off to war - to his lover, who is the love of his life, his Lucasta. While pouring his heart out with memories of her beauty and the joy's that they have shared, he fears she will think badly of him for leaving, and will not wait for him. Therefore, he makes pleas for her loyalty, her love, for her understanding, and for the sacrifice he feels he must make. (Summary by Laur)