The class deals with not "resting on one's laurels", and that not a few people who lived their entire lives idealistically, "lost it" upon getting older. Similarly the importance of not focusing on luxuries but on the necessities of life.
Seemingly 'Strange' Rabbinical Decrees- Not What You Thought!
Rav Kook suggests a very innovative and important "eye-opening" way to understand some of the rabbinical decrees which are particularly difficult to understand!