As I close my eyes, I come back to the wheat field. Stepping out of the wheat field, I stand on the beach for a moment and enjoy the smell of the ocean breeze, the feeling of the wind upon my face. Then I get back to work.
A circular stone wall arises in the middle of the dirt field. Coming in at ten feet tall and made out of castle stone, the wall makes a very wobbly circle around a flattened patch of dirt.
The ocean bends, and now the town wall sits on a corner of the dirt field next to the beach. Surrounded by the ocean on two sides, the town wall feels safe and secluded from the rest of the land, while near enough to the ocean in order to provide water for its eventual inhabitants.
A few problems arise. How are the inhabitants supposed to drink ocean water? Sure they can get food from the wheat fields and fish from the ocean, but that doesn't solve the water problem. Unless I want them to boil their water every time they are thirsty or drink almost entirely alcohol, ocean water will not work.
A river pops up, running through the field of wheat and ending in the ocean. Where there is a river however, there must be a source. In the distance opposite of the stone wall a mountain appears. Partially up this mountain lies a lake, the source of the river water. It's unknown how far away the mountain is. It could be a mile, it could be 100 miles. It might not even be visible from the town - another thing to figure out later.
Some of the dirt in the dirt field around the town becomes compressed, as a dirt road forms, coming from the town wall until it meets up with the wheat field where the road splits into two. One road follows along the wheat field, giving it a more defined edge as it keeps going in the distance. The other road runs through the wheat field until the river, where it opens up a bit into a small area for people to gather water.
As I follow the road back to the circular wall, I realize that there are no exits or entrances yet in the wall. Two archways appear, leaving large holes in the wall for people to access the ocean or the road, whatever their needs may be.
As I finish my building for the day, I wonder. What town needs a wall so thick and so high when it lives in such a peaceful place? When there is no threat from invasion of neither human nor beast, what purpose does a town wall serve?