The science of yourself is a very important part in Freemasonry. There is a plethora of knowledge inside of its walls, but the most important part is the contents of your own temple. If you look at the etymology of the word “SCIENCE,” we will find that it is “knowledge (of something) acquired by study, (12c.), from Latin scientia ‘knowledge, a knowing; expertness,’ from sciens (genitive scientis) ‘intelligent, skilled,’ present participle of scire ‘to know,’ probably originally ‘to separate one thing from another, to distinguish,’ related to scindere ‘to cut, divide,’ from PIE root *skei- ‘to cut, to split,'” so, what are we splitting, dividing and knowing? ONTOLOGY!, metaphysical science or study of being, from the physical body to the invisible (spirit/soul) parts of our real nature. The study of yourself is a science in systematic observation, experiment, and reasoning*. Our rituals serve a purpose, and this is just one of them. This study is a life-long research, unlocking the doors to who and what we truly are.
Science, since people must do it, is a socially embedded activity. It progresses by hunch, vision, and intuition**. You are now probably thinking about metaphysics, which is defined by the Encyclopedia Britannica as “a philosophical study whose object is to determine the real nature of things. From the ancient Greek language it means ‘what comes after physics.’ Metaphysics therefore, deals with matters falling beyond our present understanding of science***.” It also examines things falling outside the scope of the physical senses; things such as intuition, psychic experiences, spiritual healing, and wherever possible, it provides plausible though not scientifically rigorous explanations as to how these processes work, as well as what their ultimate nature and purpose is. It was the phrase used by early students of Aristotle to refer to the contents of Aristotle’s treatise on what he himself called “first philosophy.” A common set of claims on behalf of metaphysics is that it is an inquiry into what exists; its business is to subject common opinion on this matter to critical scrutiny and in so doing, to determine what is truly real***. While you are studying YOUR OWN UNIVERSE (Y.O.U.) you will need curiosity and imagination just to name a few. The most important thing or subject/entity to study in this cosmos is YOURSELF, because you will be with yourself, for eternity.
**–Stephen Jay Gould, introduction to “The Mismeasure of Man,” 1981