It's emphasized during the master mason raising ceremony that self knowledge is of supreme importance for all master masons and that it's the only path to truth and light which are the principal endevours of all masons. At what point of the masonic journey, one is taught methods to acquire objective self knowledge of oneself?

In W. L. Wilmshurst's interpretation of the Craft, self-knowledge is not imparted as a set of formal instructions at a single moment, but is developed through the progression of the three degrees, culminating in the Third Degree 1.

Wilmshurst holds that the first degree teaches the purification of the physical and sensual nature, while the second degree develops the mental and moral faculties to locate a hidden centre of truth within oneself 1. The Third Degree represents the critical turning point where the candidate undergoes a symbolic death to the lower self, allowing him to attain Mastership and govern "that lodge which is within himself" 1.

At the stage of Mastership, the method for acquiring this deeper self-knowledge requires the mind to become introverted and explore its own unplumbed depths, removing moral defects and seeking the core of its being 1. This interior self-exploration must then be extroverted and brought into the logical understanding and brain-consciousness so that subjective awareness becomes realized knowledge 1.

Wilmshurst emphasizes that what Masonry terms the "genuine secrets of a Master Mason" are precisely this true knowledge of oneself and one's divine potentialities 1. Because this insight cannot be communicated merely through oral explanations or reading, it must be realized by individual practice, self-discipline, and personal experience 1.