How about a smile? (Doesn't curvilinear mean rounded?)
like this.... ☮ :)
An overwhelming feeling of peacefulness came over me as I starred at the twinkling blanket of the night sky. I needed some peacefulness in my life so I scheduled a vacation to a remote location on a secluded island.
This would denote a state or being of peace, meaning tranquility, safety, being at ease, etc. After the war, the world entered a state of peacefulness.
You'd spell it just like that. "Symbolize"
it would not have been peacefull
An image that would symbolize Nebraska is Corn. Aren't they the Corn Husker State?
The arrowhead symbolizes the direction of approach and the way the would fight. The arrowhead to the Indians was their sword and a very good one. They used it to fight and they could make them very fast and easily. They would use the tree bark and shape it and then find an ovul rock and slowly shape it to be the head of an arrow. That is why they call it an arrowhead.
dove
There is a tradition of making petits pains de benits(blessed loaves of bread) on St Jean Baptiste Day for the local priest. These small loaves are made in the shape of a heart, to symbolize the love Jesus has for his flock, or in the shape of a star, to symbolize the birth of Jesus. Otherwise, you would eat, or serve, the kind of celebratory foods typical to your area.
This depends on what type of design you are going for. Tulips are rounded and might go well with a circular or curvilinear design as opposed to an angular one.
A book would best symbolize knowledge as it represents wisdom, education, and the accumulation of information over time.
Simpson and his donkey symbolize the beauty of the Australian spirit, and courage. My answer for this Q would be Courage in Australia.