Boredom … To think without anything in us thinking, but with the exhaustion from thought; to feel without anything in us feeling, but with its anxiety; not to desire, without anything in us refusing to desire, but with the nausea of non-desire – all that is part and parcel of boredom without being it, and is nothing more than paraphrase or metaphor. It is, as far as our feelings are concerned, as if, over the moat encircling the castle of our soul, the drawbridge was suddenly raised and there remained nothing between the castle and the adjoining land but the possibility of looking at both of them without being able to cross from one to the other.

Boredom … To suffer without pain, to love without desire, to think bereft of reason …

Pessoa's Soares, The Book of Disquiet