What is Opposite meaning of permanent in the Psalm of life?

In the context of "A Psalm of Life" by Henry Wadsworth Longfellow, the opposite of "permanent" is "transient" or "temporary." The poem emphasizes the fleeting nature of life and encourages individuals to make the most of their time and experiences. It suggests that while life may be short and ever-changing, the impact of one's actions can leave a lasting legacy. Thus, the focus is on living meaningfully despite life's impermanence.