The Kybalion was written by the three initiates which includes the seven Hermetic principles that are the magical laws that govern the universe, but these laws are almost present in all things around us and are very less exclusive to magic itself.
The fourth Hermetic principle is known as the principle of polarity wherein all manifested things showcase two major degrees. Although this should not be confused as having two different things in entirety, as this principle emphasizes the nature of a thing having two contrasting degrees. The art of mental alchemy emerges from this very principle wherein an individual can experience this transition in degrees to his/her advantage, and therefore, better their experience of reality.
For example, “thesis and anti-thesis are identical in nature, but different in degree”; “Heat and Cold are identical in nature, the differences being merely a matter of degree”; “Light and Darkness are poles of the same thing, with many degrees between them”.
Being an individual who is heavily amused by the role of emotions in human beings, I find the connection of the principle of polarity to emotions deeply fascinating. The aspect of Love and Hate with regards to emotions are usually considered direct opposites of each other and are usually the mental states to which most are slaves. What this Hermetic principle can teach us today is that if one is able to firstly, understand that these two simply mental poles of the same thing as there are two degrees and a middle point where “like” and “dislike” reach a thin line, and hence, it becomes difficult to differentiate between the two. And secondly, if one is able to master this art of mental alchemy i.e., by will able to change and move between the two mental poles- he/she can be forever free to be the masters of their own mental states, which I believe is an achievement that would be useful when climbing the ladder to Maslow’s Self-Actualisation. The Pairs of Opposites exist everywhere, as nature of everything constitutes of two contrasting degrees on both the ends of the scale. Things that are a part of two distinct classes cannot be transmuted into each other, but only things belonging to the same class may have their polarity changed. And therefore, with this, an Hetmetist can transmute from one mental state to the other upon the degrees of Polarization as North never becomes Love or Hate, or Green or Red, but it may and often turn into South and vice-versa.
– Sanjana Singh