besetting

The first thing to bear in mind (especially if we ourselves belong to the clerico-academic-scientific type, the officially and conventionally “correct” type, “the deadly respectable” type, for which to ignore others is a besetting temptation) is that nothing can be more stupid than to bar out phenomena from our notice, merely because we are incapable of taking part in anything like them ourselves.

Neither were they connected with fear: he was conscious of no fear. Rather, they originated in a strange besetting desire to know what to do when the time came; a desire gigantically disproportionate to the few swift moments to which it referred; a wondering that was more like the wondering of some other spirit within his, than his own.