‘To grind’ is to collect and learn the things that are serviceable to faith.
"Youths" or "Young men" generally represent intelligence or the understanding of truth. This is fitting, since adolescent boys tend to be more advanced intellectually than...
To 'stumble' denotes being scandalized or offended, and falling, as a result, from truths into falsities.
Generally speaking things that are seen as lower physically in the Bible represent things that are lower or more external spiritually. In some cases this...
'Wood' signifies good, as well the good of love to the Lord as the good of charity towards our neighbor.