Yellow is yet another critical colour in Native American beadwork. It is often affiliated with the Sunshine, warmth, and joy. Yellow beads are used to stand for the south, which happens to be the course on the midday Sunlight and the time of working day when persons are most active. https://medium.com/@spoilmevintagediy/the-rich-history-of-beadwork-a-journey-through-the-ages-4e4fd2e474cf