The Work and the Puritan's use of the word constancy

This paragraph in a blog post about something else I found very interesting. It's about a word the Puritans used that has fallen out of our language, basically. The word is still familiar, but the use they made of it has fallen out:

"The Puritans used to speak of “constancy,” a word that has largely fallen out of use since then. It speaks of faithfulness and endurance and dependability—character traits of the Christian. The Puritans admired those who were constant, those who endured through all the trials of this life. They cared less for extraordinary acts and more for a life of quiet, consistent faithfulness."

The blog writer doesn't get totally at it, but you can see how once again school language is universal, and the Puritans were using this word the way the Work talks about the instability of Many 'I's and many unconscious roles, or personalities, and the carriage being driven by the wild horses or the drunken driver rather than the awake Master, and so on. Basically the stability of consciousness that increases as you ascend up the internal hierarchy of increased unity from Many 'I's, to Observing I, to Deputy Steward, to Steward, to Master (or Real I).