Robert Silliman Hillyer - "Only last night we dwelt together, we" lyrics

Only last night we dwelt together, we Whose lips the ultimate farewells enthrall; Last night itself is but a stone let fall Into the chasm of eternity. There shall be echoes, I shall hear them call However faint, however far they be; There shall be shadows, I shall always see Them beckon from Time's memory-haunted hall. The drear mirages of the years gone by Glow falsely golden from their dark domain, But now they stir me not. "Mere mockery," Low to my heart I say to still its pain, And cloud-built cities in the sunset sky Fade out in dark across the endless plain.