The Ojibwa would tie strands of sinew string around a frame of bent wood that was in a small round or tear drop shape. The patterns of the dream catcher would be similar to how these Native Americans tied the webbing for their snowshoes.
However a Lakota story tells of how Iktomi (spider) came and spoke to an old Lakota spiritual leader who was on a high mountain and had a vision. In his vision, Iktomi, the great trickster and searcher of wisdom, appeared in the form of a spider. Iktomi spoke to him in a sacred language. As he spoke, Iktomi the spider picked up the elder’s willow hoop which had feathers, horsehair, beads and offerings on it, and began to spin a web. He spoke to the elder about the cycles of life, how we begin our lives as infants, move on through childhood and on to adulthood. Finally we go to old age where we must be taken care of as infants, completing the cycle.
But, Iktomi said as he continued to spin his web, in each time of life there are many forces, some good and some bad. If you listen to the good forces, they will steer you in the right direction. But, if you listen to the bad forces, they’ll steer you in the wrong direction and may hurt you. So these forces can help, or can interfere with the harmony of Nature. While the spider spoke, he continued to weave his web.
When Iktomi finished speaking, he gave the elder the web and said, The web is a perfect circle with a hole in the center. Use the web to help your people reach their goals, making good use of their ideas, dreams and visions. If you believe in the Great Spirit, the web will filter your good ideas and the bad ones will be trapped and will not pass.
Traditionally, Native American dream catchers were only a few inches in diameter and it would be finished with a feather hanging from the webbing. Wrapping the frame in leather would be pretty common too as another finishing touch.
Natives believed the night air was filled with good and bad dreams. The legend of the Dream Catcher is that it captures the bad Spirits and filters them. Protecting us from evil and letting through only the good dreams. It is believed that each carefully woven web will catch bad spirit dreams in the web and disappear by perishing with the first light of the morning sun.