They saw goodness in the world as a reflection of the Great Spirit in the streams, waterfalls, mountains, valleys, trees. The Pilgrims came to America trying to find a better life in a new world, free from oppression and hard times, driven by their dreams for independence and opportunity. What they found was that they needed to make quick accommodations to other hard times, hunger and despair in an uncharted new world. Of course, when the two groups came upon each other, they were truly strangers - people engaging each other new in body, mind and spirit. And they gave thanks.
Thanksgiving is the occasion when strangers meet.
The first meeting of the Native Americans and Pilgrims was a feast, a meal. A special day and time. What we now call Thanksgiving. They brought the food that was indigenous to each group. They shared their food as a primary goal to feast with strangers.