R’ Avraham Pam compares people conversing in Torah to the newly engaged young woman who shows off her engagement ring to others. The girl is so excited that she wants to share the tangible evidence of her joy with everybody.
Likewise, one who appreciates the sparkling beauty of the Torah’s wisdom wants everybody else to share in his joy. God remembers these moments of passion and repays man for them. ~ The Pirkei Avos Treasury