If you are in recovery, "stay away from yachts" means stay away from materialism. If we focus on feeding our materialistic desires rather than our spiritual needs, we are more likely to relapse. Yachts are an example of what could become a materialistic drain because they cost endless amounts of money and tend to end up being something you want to show off to others rather than truly enjoy. Trying to impress others is a relapse trigger. Especially at the beginning, focus on reducing your ego. You do not need to show off or impress anyone anymore, especially with stuff. Yachts represent stuff. Stuff causes stress. Having the materialistic "good life" can cause us to lose focus on what's important.
Today I will relax and not worry about attaining materialistic stuff.