Changing.

The weather is changing. Do you notice that it is a fairly gradual change? It does not happen all at once. Sometimes there are spurts of change, but mostly it is gradual.

It is sometimes like that with us. It is gradual. You must be patient. But you must still change. 

You must also keep 'up to speed' with the changes that are happening. In other words, you start changing, but you cannot go back. Going back will cause extreme pain.