Which figure is associated with the concept of balance in Freemasonry?

The two pillars, Boaz and Jachin, are deeply significant in Freemasonry, representing the concept of balance and duality. These pillars are often associated with the entrance of King Solomon's Temple and symbolize strength (Boaz) and establishment (Jachin). In Masonic teaching, they embody the balance between opposing forces, such as strength and wisdom, male and female, and are emblematic of the equilibrium necessary in both personal and communal aspects of life.

These pillars serve not only as literal architectural features but also as metaphors for the balance required in moral conduct and the pursuit of virtue. In a broader sense, they remind Masons that life is composed of dualities, and finding harmony among these is essential for spiritual growth and enlightenment. Thus, the connection of the two pillars to the concept of balance makes them the correct answer to the question posed.