I wouldn’t hazard a guess between the two poles of neurochemistry or intradimensional (i.e. spiritual) resonance but I expect that it lies in this spectrum, somewhere, and perhaps in both (or several) places simultaneously. Some days I believe in spirit, sometimes in blind genetic compulsion but today is all that really ever matters and right now in this instant I can only think of the song lyrics: “the only thing I ever learned from love was how to shoot someone who out drew ya.”
The affective human rhythm of oscillating emotional experience notwithstanding, I dare say that questions as to the nature of love are as enduring and as interesting as they precisely because they will never, ever be definitively answered.
Daedelus Kite 