You finally think things are going well, you are getting used to the idea that you can find a sense of calm even for a brief moment, and then a storm hits.
You plant your feet firmly on the deck and begin the fight of your life as a long series of turbulent waves hit and you don't even have time to think or rest. It could be an infection that lands you at a hospital or a deep depression that takes you off to a far remote place that seems to offer no way back. This is when all the previous ups and downs that you have experienced just don't compare. But you have learned some tips along the way and they can help you navigate your way back to calmer seas.
As with all storms, an end is certain and how you choose to navigate with weather conditions will safely get you to port.