It's a very simple book written with short texts that deal with Masonic morals and their relation with day to day Masonic life. A Mason can never be separated wherever he goes from this inner mental condition. Masonry goes far beyond titles and degrees or session in Lodges.
The Grand Lodge is inside the Mason himself and it's where he must learn how to recognize it. This way, he can fully develop all his Oeuvre of Perfection with consciousness and reinforce the pillars of his Outer Lodge. The Spirit of Tradition lies within him and it is himself.