Throughout the poem, the theme of love exhibits various facets and holds a crucial significance. Dante's love beautifully intertwines both human and divine elements. For instance, Dante's love for Beatrice Portinari is a central driving force in the poem and represents human love. 

Beatrice, who symbolizes divine grace and spirituality, serves as Dante's muse and guide, leading him through his journey in paradise. It's important to note that Dante's love for Beatrice is not carnal but courtly, based on admiration and reverence. As a result, he often becomes entranced by her eyes and finds himself in awe of her beauty.

Yet may I speak; that, as I gaz'd on her,
Affection found no room for other wish.
While the everlasting pleasure, that did full
On Beatrice shine, with second view
From her fair countenance my gladden'd soul
Contented; vanquishing me with a beam
Of her soft smile, she spake: "Turn thee, and list.
These eyes are not thy only Paradise."

Dante's love for Beatrice motivates him to undertake his pilgrimage and strive for moral improvement and maturity. In this sense, love becomes a catalyst for spiritual growth and self-awareness.

As Dante advances through the realms of Hell, Purgatory, and Heaven, he encounters various expressions of divine love. God's love is showcased as the ultimate unifying force that governs and guides the universe, providing redemption and salvation for those who seek it.

...Here vigour fail'd the tow'ring fantasy:
But yet the will roll'd onward, like a wheel
In even motion, by the Love impell'd,
That moves the sun in heav'n and all the stars.

The theme of love in The Divine Comedy adds depth and emotional resonance to the poem, illustrating the profound connection between human emotions and the divine. It also serves as a reminder of the transformative power of love in shaping one's spiritual journey and understanding of the divine.