What does keep your bright swords for the dew will rust them?

The phrase "keep your bright sWords for the dew will rust them" suggests that one should preserve their strength, skills, or weapons for a time when they are truly needed, rather than letting them be dulled or diminished by unnecessary use or exposure. It emphasizes the importance of maintaining readiness and not wasting resources on trivial matters. In a broader sense, it can serve as a metaphor for protecting one's potential and not allowing it to be squandered in less significant endeavors.