What is the theme in A Valediction: Forbidden Mourning by John Donne?

Love is another theme in the poem. Known for his love poetry, it is not unusual that love is an integral theme to "A Valediction: Forbidding Mourning." After likening his departure to death, Donne reminds his wife that an outpouring of sadness and emotion over his leaving would profane their love for one another. He uses the love of "dull sublunary lovers' love," or love that is decidedly ordinary and even immature, to contrast the "refined" love that Donne and his wife share. Their love goes beyond the physical; it is a spiritual love that transcends the material world and the limitations of their own bodies. Donne goes on to say that his love for his wife can only expand over distance, and that it is her love that will hearken his return to her.