Persuasion gets explained here while it is being used on you, which is either honest or unnerving depending on your mood. Cesar Soto writes about embedded commands, reframing the chatter in your own head, and communicating through deliberately ambiguous language, then admits mid post that he is doing exactly that to hold your attention.
The network marketing pieces borrow their frame from an old video game, putting you at the bottom of a triangle with your leader above and your warm market to one side. He uses it to explain why trying to learn and do everything alone was his own worst decision.
An earlier run in Spanish covers fat loss and nutrition in real detail: what to eat before training, whether protein bars are sweets in disguise, why an energy drink may work against you.
Read the psychology posts if you want to understand why certain writing moves you. Read the Spanish nutrition posts if that is what you came for, because they stand perfectly well on their own.