Kinda funny that Bavarian is more distant from 'High German' than Yiddish :D (not exactly wrong though, Yiddish is easier to understand for any non-Bavarian than hardcore Bavarian).
I can image the moment Sir William Jones realized Sanskrit and Latin had a common origin. "Wait a minute...these can't all be coincidences." It's pretty mid-blowing.
My daughters are growing up bilingual in Persian and English. Totally fascinating to find the cognates; many are surprisingly close still (daughter/dokhtar, star/setare, cow/gav). It’s fun feeling like I could communicate basic ideas to a proto Indo European speaker based on those really distant cognates.
Lithuanian: Dievas davė dantis; Dievas duos duonos.
Sanskrit: Devas adadat datas; Devas dat dhanas.