What must not be done to the secrets of Masonry according to the obligation?

The obligation of a Mason emphasizes the importance of maintaining the confidentiality of the secrets of Masonry. Writing, printing, or engraving the secrets ensures that they could be easily disseminated and accessed by those outside of the Masonic fraternity, which undermines the very nature of these exclusive teachings and symbols. The focus on written or printed form especially highlights the significance of safeguarding the information, as it could reach a wider audience without the context or understanding of its intended meaning within the Masonic tradition.

The other options reflect different aspects of the obligation but do not encapsulate the primary concern of physical documentation, which poses the most substantial risk of breaching secrecy. Speaking about them or sharing with family may also breach confidentiality, but these actions typically involve verbal communication or trust relationships rather than the permanent and widespread dissemination that writing or printing would involve. Using them in rituals is part of the practice and honor of Masonic tradition, not a breach of the obligation.