Don't feel bad - no one expects you to be omniscient.... yet!
That said, we may as well close this topic down to prevent having two on the same topic... best to keep any comments on the article in the one place.
If you have asked me of the origination of unease, then I shall explain it to you in accordance with my understanding: Whatever various forms of unease there are in the world, They originate founded in encumbering accumulation. (Pārāyanavagga)
Exalted in mind, just open and clearly aware, the recluse trained in the ways of the sages: One who is such, calmed and ever mindful, He has no sorrows! -- Udana IV, 7