In Luke 16.10, Jesus said, "The person who is trustworthy in small matters is also trustworthy in great ones." How faithful we are in small matters measures our overall faithfulness. Serving the Lord faithfully could be as small as reciprocating a smile from someone. This is what the Little Way of St. Therese is about ~ following her way can transform anyone into a saint. When Jesus wants us to be perfect as the heavenly Father is perfect, we are not to neglect small matters. I am old enough to recall the popular hit song of the 50s "Little Things Mean a Lot" ~ perhaps adding "to God" at the end of the title would make it more memorable and more meaningful.