The 3 Buddhist principles/Golden Truths are really TRUE:
1. Impermanence (annicha) – Nothing can be held onto, everything is A&P
2. Non-self (annatha) – Non-essence/Emptiness of all experience
3. Unsatisfactoriness of all experience (dukkha) – Nothing finite/no object can satisfy
The truth is the Grand Emptiness-Objectless-Whole-Infinite-Mystery-Unknown in which all experience APPEARS as simply an appearance.