Mutability

We are as clouds that veil the midnight moon; How restlessly they speed, and gleam, and quiver, Streaking the darkness radiantly!--yet soon Night closes round, and they are lost forever: Or like forgotten lyres, whose dissonant strings Give various response to each varying blast, To whose frail frame no second motion brings One mood or modulation like the last. We rest.--A dream has power to poison sleep; We rise.--One wandering thought pollutes the day; We feel, conceive or reason, laugh or weep; Embrace fond woe, or cast our cares away: It is the same!--For, be it joy or sorrow, The path of its departure still is free: Man's yesterday may ne'er be like his morrow; Nought may endure but Mutability.