The evolution of the alphabet is fascinating. As I've studied the occult, Eastern and Western philosophy, religion, meditation, etymology and languages for over 30 years I'm mostly fascinated in the simple symbols of obviousness that carry on in the background while we over complicate things.
UsefulCharts (YouTube handle) Has done a great job illustrating the roots of the alphabet. These roots, not covered here, also branch into Eastern alphabets like Devanagari which is used in Sanskrit and can be seen on the Ashoka pillars in 3 BC India.
One epiphany I had was the Hieroglyphic for "speak" which shows a man pointing to his mouth.
The phonetic sound for this is "Sdjd" or SDD which to me suggests that it sounds like "suggest". Words, sounds, ideas, symbols are carried to us from thousands of years. The knowledge is harnessing 100,000 years of human knowledge.
Opening up the keys to these archetype symbols starts opening up the left and right brain. Eventually the center will open up, too.
The symbol of "speak" is giving us a "spell" and is suggesting a mental pointer to the mind. The pointer is the digit (finger). The hand pointing is from a man (man means "hand" as in manufacture) to his mouth. The sounds are S (sibilant) and D (dental, top of mouth).
In NLP (Neuro linguistic programming) the sounds like this are used in repetition to teleology (television) meaning. Pharmaceutical companies use these in advertisement all the time. Hence the Mass Media (M5M) gets is money from these suggested programmers. News programs use these as well.
Finally there is the Freemason suggestion to not say anything at all. Keep it quiet and let let the undesirables flounder on the checkered floor.
Coin Photo from https://museumfreemasonry.org.uk/blog/silence-still-speaks