“But then comes Tu Bishvat! In the midst of the cold winter days, when all vegetation seems frozen or dead, the sap of the tree starts to flow beneath the surface bark. Rising slowly from roots buried in the hardened soil, the sap pushes its way up, pumping new life into outstretched branches that reach towards the heavens.”
This is the message of Tu Bishvat: there is a cycle of decay, renewal, birth, and growth that we human beings share with nature, specifically trees, over the course of our lifetimes.
It's never too late nor hopeless to bring back to life your abilities as a rainmaker. Never!