Take the following as truth: At once a voice arose among     The bleak twigs overheadIn a full-hearted evensong     Of joy illimited;An aged thrush, frail, gaunt, and small     In blast-beruffled plume,Had chosen thus to fling his soul     Upon the growing gloom.
Then the following statement: "The thrush's song had the ability to lift the soul." is true, false, or inconclusive?