Date: 1783

"He carries windows / In that enlarged breast of his, that all / May see what's done within"

— Blake, William (1757-1827)

Date: 1790, 1794, 1795, 1818, 1827

"If the doors of perception were cleansed every thing would appear to man as it is: infinite."

— Blake, William (1757-1827)

Date: 1792

"Lulled in the countless chambers of the brain, / Our thoughts are linked by many a hidden chain."

— Rogers, Samuel (1763-1855)

Date: 1793

"Flit, Galloway, and find / Some narrow, dirty, dungeon cave, / The picture of thy mind"

— Burns, Robert (1759-1796)

Date: 1794

"Five windows light the cavern'd Man"

— Blake, William (1757-1827)

Date: 1794

Reason once fairer than the light [has now been] fould in Knowledges dark Prison house

— Blake, William (1757-1827)

Date: 1804

"Her Brain enlabyrinths the whole heaven of her bosom & loins / To put in act what her Heart wills"

— Blake, William (1757-1827)

Date: c. 1804-1811, 1818

"For every human heart has gates of brass & bars of adamant, / Which few dare unbar because dread Og & Anak guard the gates"

— Blake, William (1757-1827)

Date: c. 1804-1811, 1818

"Terrific! and each mortal brain is walld and moated round / Within"

— Blake, William (1757-1827)

Date: c. 1804-1811, 1818

Og & Anak watch in the brain which "is the Seat / Of Satan in its Webs; for in brain and heart and loins / Gates open behind Satans Seat to the City of Golgonooza / Which is the spiritual fourfold London, in the loins of Albion"

— Blake, William (1757-1827)