“Outside the wind of Jehovah still beat on the door, trying to enter. There was no other sound. Not a jackal on the earth, nor a crow in the air. Every living thing cowered in fear, waiting for the Lord's anger to pass.”

Song for St. Cecilia's Day (1692).
Context: Consecrate the place and day
To music and Cecilia.
Let no rough winds approach, nor dare
Invade the hallow'd bounds,
Nor rudely shake the tuneful air,
Nor spoil the fleeting sounds.
Nor mournful sigh nor groan be heard,
But gladness dwell on every tongue;
Whilst all, with voice and strings prepar'd,
Keep up the loud harmonious song,
And imitate the blest above,
In joy, and harmony, and love.

Stanza 1.
The Universal Prayer (1738)

St. 5
Thyrsis (1866)

St. 4
Ode on a Distant Prospect of Eton College http://www.thomasgray.org/cgi-bin/display.cgi?text=odec (written 1742–1750)

Time Enough for Love (1973)

Source: The Blood of Olympus

Source: LSD : My Problem Child (1980), Ch. 1 : How LSD Originated
Context: Slowly I came back from a weird, unfamiliar world to reassuring everyday reality. The horror softened and gave way to a feeling of good fortune and gratitude, the more normal perceptions and thoughts returned, and I became more confident that the danger of insanity was conclusively past.
Now, little by little I could begin to enjoy the unprecedented colors and plays of shapes that persisted behind my closed eyes. Kaleidoscopic, fantastic images surged in on me, alternating, variegated, opening and then closing themselves in circles and spirals, exploding in colored fountains, rearranging and hybridizing themselves in constant flux. It was particularly remarkable how every acoustic perception, such as the sound of a door handle or a passing automobile, became transformed into optical perceptions. Every sound generated a vividly changing image, with its own consistent form and color.

Source: Walden