“asleep to rummage in their minds”
“But I've just noticed that my mind is asleep.”
“A concentrated mind and a sitting body make for better prayer than a kneeling body and a mind half asleep.”
“One may as well be asleep as to read for anything but to improve his mind and morals, and regulate his conduct.”
“It was one of the occasions when Lymond asleep wrecked the peace of mind of more people than Lymond awake.”
“Off I go, rummaging about in books for sayings which please me.”