Who can tell me, what is the source of love? 
Not the whos nor whats which we love, not our dreams nor passions. But like rain from the clouds, rivers from the high mountains, song from morning birds, from where does love come?

Like this body made up of trillions of cells, and cells made up of biomolecules, and biomolecules made up of… ah, um, let’s just skip right to the part where matter essentially breaks down into nothingness… where this body is nothing but empty space. 
And what of love? What are its elemental parts and particles? Like the body falling into a microverse of emptiness, into what space does love fall, eventually? Like trying to locate physical origins of consciousness itself, trying to locate the same for love may very well be futile—an endeavor best left to the poets among us. 
(It is apparent, yes, that science is not my forte!) But surely, there are no grand laws of physics, quantum physics, or other physics for that matter, which can tell us how love arises into our hearts and minds, and bursts so brightly, into our souls. 

So let the poet in me humbly suggest a theory. 
Love, like light, comes from the sun. Yes, that’s right. All those millions and gazillions of stars out there? They are actually love-generating furnaces! 
It makes sense does it not? Physical matter breaks down into emptiness, so we are actually bodies of empty space being filled with light. Or is light only a result of a collision of particles and waves between the sun and our vastly empty bodies? I think that light too, like love, cannot truly be contained in the mind. 
These uncontainables, and these apparent immaterials… are like wind which can only be seen in the swirl of desert sand. Or water, in the long and slow curves of canyon walls. Sound, in the reverberation of strings. 
And love, seen in the light of a smile or felt in a remembered birthday, arises in the betweenness of things. In relationship. A mother and child. A butterfly and an irresistible flower. Shimmering rainbows of water and light in the sky. A spider and her web. Love is light. Like how we come to see the sun—in the collision of particles and waves. A reverberation felt in the deep space of the heart. 

In the photo above, do you not see the heart shining out from the sun? I offer you this, my empirical evidence that the source of love is indeed, the sun.
So the next time you gaze up into the starry night sky, perhaps you will feel the overwhelming presence of love shining everywhere there… And your heart, your one precious heart, flooded with light.