The Fall
Niagara as literal and metaphorical
Hood opens with the actual waterfall but immediately abstracts it into spiritual territory—'despair and death,' 'rainbow without hope.' The physical catastrophe is a vehicle for existential crisis.
Time as river current
Hood collapses Niagara with the 'stream of time'—the waterfall isn't just geography, it's mortality itself. The speaker can't escape the current because time moves only forward.
Sensory inversion
The speaker closes his eyes but *still sees* the shore vividly ('through transparent lids'). Hood reverses the logic of blindness—shutting out the world doesn't stop internal vision of disaster.
Repetition of 'From'
The four 'From' clauses ('From crag to crag—from midnight deep to deep') accumulate without resolution. The speaker bounces endlessly rather than reaching bottom—a nightmare of interrupted falling.
The sudden deflation
After 24 lines of Gothic horror, the poem pivots to domestic comedy: the speaker was sleepwalking and fell down stairs. Hood abandons the metaphor entirely, leaving the reader disoriented.