I have always viewed personalities as essentially waveforms, which when combined may exaggerate certain aspects, negate others, or complement them in other ways that make the resulting form more... well, pleasurable, for lack of a better word. I visualize it this way not for woowoo^1 purposes but just to make sense in my mind why some personality traits and quirks in others seem to boost parts of my own, or adjust spikes of my own personality that I view as too strong (i.e. I am generally very introverted when alone I'm a group, but a close friend who "evens out" that aspect of me can lead me to being more gregarious).

^1: it is, however, curious that similar visualizations can be found in woowoo circles