Here is my rough understanding of the word “truth.”
The Functional Truth applies to daily life; it’s a set of premises/assumptions (derived from personal or external evidence) that allow me to make predictions with a satisfactory rate of positive results, and prosper in the long run. It does not presume to know the nature of reality, and in my mind, is the most important Truth because it works, and due to its lack of presumption about the underlying nature of reality, aligns with a mystical viewpoint that allows for divinity (if it exists) to maintain its mystery by not presuming to know it, yet flow with external indicators and phenomena (divinity’s clues to me, if divinity exists) through a humble stance on new evidence. In a nutshell: “Those who say they don’t know, know. Those who say they know, don’t know.”
Next is the Scientific Truth, which draws a reliable map of cause and effect that must adhere to acceptable error rates. When applied properly, this truth will adjust its premises for new evidence (physics is a good example of this, the Seven Countries studies is not).
Next is the Logical Truth, which draws a reliable map of cause and effect, but does not use statistics, or acceptably established rates of error. This truth, when applied properly, also demonstrates humility and flexibility, for no given premise is accepted as definitely true, and can only be “validated” through not just sound deduction, but also sound experimentation (induction, roughly).
Lastly is the Definitive Truth, which dogmatic people purport to know (heaven, reincarnation, enlightenment, god, etc. etc.) but real mystics only hint at. I believe this is because if there is some grander power that structures the universe, then in order to harmonize with it one must avoid purporting to know it and instead DEMONSTRATE they know it by following the clues that are left before them, and transforming their efforts into desired results that benefit the collective. That’s why I believe seeking effectiveness within ethical bounds (how I define the Functional Truth) is the simplest, most practically relevant pathway to honoring divinity, if such a thing even exists.
If not, that’s okay too—I’ve covered my bases (my practical and ethical considerations) by honoring the Functional Truth. 😉