Freemasonry indeed encompasses profound meanings that extend beyond mere interpretation. As noted by Albert Pike in *Morals and Dogma*, "Masonry, like all the Religions, all the Mysteries, Hermeticism and Alchemy, conceals its secrets from all except the Adepts and Sages or the Elect and uses false explanations and misinterpretations of its symbols to mislead those who deserve only to be misled; to conceal the Truth which it calls Light from them and to draw them away from it." This suggests that the true essence of Masonic teachings is reserved for those who have reached a certain level of understanding and initiation, aligning with the idea that deeper truths are accessible only to the initiated.
Furthermore, J.D. Buck in *The Symbolism of Freemasonry* emphasizes that "the real secrets of Freemasonry lie in its Symbols, and the meaning of the symbols reveals a profound philosophy, and a universal science, that have never been transcended by man." This indicates that the hidden meanings within Freemasonry are indeed supra alchemical, intended for those who seek enlightenment beyond the surface level.
Thus, your assertion resonates with the understanding that Freemasonry is a journey towards deeper spiritual truths, accessible primarily to those who have undergone the necessary initiations and have the capacity to comprehend these mysteries.