We are grains of sand

I remember that from Europe, and before embarking on this adventure through Africa that gave me the moment that you can observe, My search criteria on the internet to show my friends photos of Namibia was: “sea-dunes-Namibia”. And there were spectacular photos of huge dunes colliding with the Atlantic Sea.
 
Later, there I was in person taking my own photographs. I took this one in particular, from a place known as Sandwich Harbor a few kilometers from Swakopmund, a picturesque and quiet coastal town.