This wonderful art brings our childhood memories , thanks to @sanmi to have such a great art in this time's caption contest.
Sand Castle teaches us an important lesson - preparedness to accept failure. When children play and build sand castle, they know that its not permanent, they know that its going to break quite a few times in its making, but they take the pleasure out of it. The reason - less expectation and enjoying what they do. Life is similar to sand castle. Everything you are building, may fail. It may fail today or tomorrow. There is no guarantee that things are going to be forever with you. But if we still expect high, then it brings us sorrow. If your expectation is less, then you are prepared, prepared to accept failure. So my caption for this art is :