Hexagram 18, Gu, represents the phenomenon of decay and the critical necessity of restoration. In the pursuit of wealth, this hexagram serves as a stern philosophical reminder that prosperity is never static; it requires constant maintenance. When financial matters stagnate, it is often due to "insects in the wood"—neglected habits, outdated systems, or ethical compromises that have silently eroded the foundation of your success.

The oracle promises "Yuan Heng," or great prosperity, but only through the bold act of "crossing the great river." This signifies that accumulating wealth now demands a courageous restructuring. You cannot simply patch the surface; you must uproot the rot. The wisdom of "three days before and three days after" dictates a rigorous temporal strategy. One must analyze the historical causes of current failures before the new cycle begins, while simultaneously planning the long-term maintenance of future gains. True wealth is found not in the blind pursuit of the new, but in the disciplined restoration of what has been neglected. Embrace the chaos of correction, for in clearing away the old decay, you create the fertile ground necessary for enduring abundance.