Fusion of emotion and intellect is another important feature of the poem. The fusion is observed in the comparison of the lovers to the mysterious phoenix and the divine saints. The speaker assumes that like the phoenix, the lovers would 'die and rise at the same time' and prove 'mysterious by their love'. Reference to this mythical being well sums up Donne's theory of sexual metaphysics; a real and complete relation between a man and a woman fuses their soul into one whole. The poet is both sensuous and realistic in his treatment of love. The romantic affair and the moral status of the worldly lovers are compared to the ascetic life of unworldly saints.
The poet begins by asking God to increase the strength of divine force to win over the poet’s soul. He requests, “Batter my heart” (line 1), metaphorically indicating that he wants God to use force to assault his heart, like battering down a door. Thus far, God has only knocked, following the scriptural idea that God knocks and each person must let him in, yet this has not worked sufficiently for the poet. Simply to “mend” or “shine” him up is not drastic enough; instead God should take him by “force, to break, blow, burn” in order to help him “stand” and be made “new” (lines 3-4). This request indicates that the speaker considers his soul or heart too badly damaged or too sinful to be reparable; instead, God must re-create him to make him what he needs to be. The paradox is that he must be overthrown like a town in order to rise stronger.