Here's why:
* The West Wind is associated with travel and adventure: The West Wind is often depicted as a strong, driving wind that carries ships westward, towards new and unknown lands. In the poem, the speaker longs for the "salt spray" and "the wild, free life" of the sea, which the West Wind symbolizes.
* It represents freedom and escape: The West Wind is a force of nature that can't be controlled, and this aligns with the speaker's desire for a life free from constraints. The West Wind carries the speaker's spirit towards a more adventurous and liberating existence.
* It evokes a sense of motion and excitement: The West Wind brings with it a sense of movement and energy, which is reflected in the speaker's yearning for the sea. The wind's force represents the thrill of adventure and the desire for a life filled with action.
While "Sea-Fever" doesn't explicitly welcome the West Wind, it does celebrate the power and freedom it represents, which are integral to the speaker's desire for a life at sea.