The passage suggests that true certainty can only be held by those things that are enduring and unchanging, such as stars, mountains, and the sea. These elements of nature have a timelessness that grants them a unique perspective on existence. However, despite their wisdom gleaned from eons of existence, they lack the capacity for human language to articulate their understanding.
This reflects a profound truth about the nature of knowledge and permanence. Only entities that have stood the test of time can truly grasp the essence of certainty, yet they remain silent, embodying a depth of understanding that transcends spoken words. This contrast emphasizes the limitations of human expression versus the vastness of eternal wisdom.