English trivia (sorry, jordy): "a" is to "an" as "thy" is to "thine". That is, "thy" comes before a consonant, and "thine" comes before a vowel. "Thy seeds", "thine acorns".
@noelle It’s funny because I was just wondering what the difference was
@noelle Do you know if this is related to the phrase “mine own”
@jordyd probably!
@noelle Huh. Guess I finally know why so many old hymns used the phrase "Mine eyes". That used to drive me nuts as a grammar-obsessed adolescent.