Sickness has a way of muddling your brain; it can make you temporarily forget what you believe about God, creation, and yourself, making your suffering worse. In my own experience with chronic illness, I’ve found that it helps to collect small reminders about God’s person, providence, and presence so that on days when thinking is difficult due to fatigue and brain fog, I can read something short to set my mind straight. Many of the reminders I collect come from church history.