Literature Reference: 横烟秋水上，疎雨夕阳中。—— 《秋霁寄远》 Smoke drifts across the autumn water, sparse rain falls in the setting sun. Source from 'Autumn Clarity Sent Afar'.
横: Horizontal or vertical, it's all the same. Opposed to "longitudinal."
烟: Smoke, billowing clouds. Herbal essence.
Meaning: Drifting smoke over autumn waters symbolizes tranquility and depth.