In the Pylon Le Nechash mystery school many topics are covered from sacred geometry and mathematics to astronomy/ Astrotheology, Alchemy, psychic development personal finance, health and fitness, and magick but by far the most important skill is communication.
No other skill will take you farther in life than being able to effectively communicate. This involves active listening and persuasion. Not just getting your point across but having tactical empathy to truly understand where your counterpart is coming from. The art of negotiation and conversational hypnosis neurolinguistic programming and written word, symbolism, codes, and story telling, and not just communicate with other people but to truly understand how to communicate with your own subconscious mind and in turn the greater universe in all its aspects from gods and demons to animals and nature.
Nothing else is more important because without good communication nothing else matters. You can not teach and you can not learn anything else.
Thoth/ Hermes the aspect of our universe which represents the mental faculties from Art, music, Law, science, mathematics, alchemy, commerce, gambling, travel, astronomy and more, but first and foremost, and above all, communication.
We are a social creature and every aspect of our lives and our reality involves some form of communication so master them all and you will master all other disciplines. Nations can be conquered and defended by communication alone so just imagine what this skill can do for your day to day life.