The tone of "The Wind" by Robert Louis Stevenson can be described as playful, admiring, and somewhat whimsical. The speaker expresses a sense of curiosity and wonder about the wind, personifying it as a lively and dynamic force that interacts with the world in various ways. The repeated exclamations of "O wind" convey a sense of enthusiasm and reverence.
There's also a reflective quality, as the speaker contemplates the nature of the wind, questioning its age and essence. The tone balances between childlike innocence and a deeper philosophical inquiry, creating a vivid and engaging depiction of the wind's presence in the natural world. Overall, the poem evokes a feeling of joy and appreciation for the wonders of nature.