@Herald,
It's more interesting when you get to know people through the subatomic faculties which drive them, rather than this social illusion the Universe creates via a series of communicative networks.
It's more so understanding the human mind for what it is beyond this social understanding of it. For an example, incorporating the behavioral patterns of heat and water throughout the Universe, as what drives our anger and our sadness; or passion and wisdom, when you master these elements of the human mind. Another example would be our laughter. This brain of mine one day suddenly made the connection between how lightning behaves and how laughter behaves. Lightning carries nitrogen. Laughing gas contains nitrogen. We laugh when we're maintaining our composure. Lightning supplies nitrogen to maintain the planet's composure. The human body contains an electromagnetic shield... so does our planet. The entire human experience is truly the Universe's experience; in a different form, on a different scale. For an example, our skin has pores like a rock, but the purposes of each other are very, very different - the design pattern, however, remains irrefutably so. As above, so below; from form, to faculty; to, and fro.
You missed the entire point of the third section. People are wired differently and they have strengths where others are weak and vice versa. To know someone is to know their algorithm - it's important for anyone who is aspiring to understand their own people, to understand that what works for you will not work for them, but there are specific details that are universal enough to influence someone regardless of their algorithm, which I mentioned already.