I saw people making magnificent sandcastles. They plaster the sides and fill it with objects made of sand. The earth begins to shake and all the crated sand object start to crumble.
I feel like God is saying keep your eyes on what is not sand. Things that are eternal and not temporary. Work on building up relationships and faith. Hold on to what you cannot loose. Peace and purpose will return to your soul. The time of shaking will not last.