Sonbadak tarigi, also known as "the tree of happiness" or "happiness tree," is a traditional Korean custom that involves planting a tree to commemorate significant events or milestones, such as weddings or the birth of a child. This practice symbolizes growth, prosperity, and the hope for a fruitful future. The tree serves as a living memory, connecting the past with the present and future generations. It reflects the cultural importance of nature and the belief in the positive energies associated with planting trees.