This comes at the end of one of the Master letters in which she asks the mysterious Master to come visit her in Amherst (“[this summer – could]”). She very much wants to spend time with Master, so perhaps this poem is saying that even without her having a token of love, a “Rose”, she still feels herself “a’bloom” with pleasure at the thought of their meeting, and the thought of Master coming to her causes her to soar “in Ether” as if in an ecstasy even though she is not a bird (which could represent her not having hope Master will actually come).