the fragrance can create a feeling of relaxation and comfort.
Another reason is tradition.
For centuries, agarwood has been highly respected throughout parts of Asia and the Middle East. In various cultures, it has been associated with refinement, spirituality, hospitality, and prosperity. It has been used in religious ceremonies, meditation, prayer, and important gatherings.
Because of its cultural significance, some people carry a small piece of agarwood as a personal keepsake or simply because they enjoy its fragrance.