Tree of Life: symbol of growth, wisdom, protection, bounty, redemption. The Tree of Life is a universal symbol that can be found in the spiritual tradition of most cultures. At times it is a 'cosmic tree' that all mystics must climb to understand the gods. The Tree of Life symbolizes: Wisdom. Green, like the leaves on the branches, symbolizes nature, fertility, and life. It also represents balance, learning, growth and harmony. Our image of the willow tree represents the strength, stability and structure of the trunk, standing firm and withstanding the greatest of challenges. The "Tree of Immortality" (Arabic: شجرة الخلود) is the tree of life motif as it appears in the Quran. It is also alluded to in hadiths and tafsir. Unlike the biblical account, the Quran mentions only one tree in Eden, also called the tree of immortality, which Allah specifically forbade to Adam and Eve.