When "Ships are coming" and 

"Curtain is standstill"

In any professional activity there are important things that “come to you” and those “toward which you make significant efforts.”

 And scientific activity is no exception. Only the tools for achieving results here can completely change their purpose, turn over.

 In the same way, when you Sail, the Wind is responsible for your movement and therefore Life through the surface of deadly Waters. But when you are standing in the shower and a strong Wind from the window, together with the "Curtain-Sail", turns into something that you begin to fight with, when a stream of water directed at this "Sail" from the shower head becomes your weapon of pacifying these natural forces