"The Loneliness One dare not sound -- And would as soon surmise AS in its Grave go plumbing To ascertain the size -- The Loneliness whose worst alarm Is lest itself should see -- And perish from before itself For just a scrutiny -- The Horror not to be surveyed -- But skirted in the Dark -- With Consciousness suspended -- And Being under Lock -- I fear me this -- is Loneliness -- The Maker of the soul Its Caverns and its Corridors Illuminate -- or seal"

Source: Emily Dickinson (1998). “The Poems of Emily Dickinson”, p.588, Harvard University Press