George Müller said this quote

I came to England weak in body, and, in consequence of much study, as I suppose, I was taken ill on May 15, and was soon, at least in my own estimation, apparently beyond recovery. The weaker I became in body, the happier I was in spirit. Never in my whole life had I seen myself so vile, so guilty, so altogether what I ought not to have been, as at this time. It was as if every sin of which I had been guilty was brought to my remembrance; but at the same time I could realize that all my sins were completely forgiven—that I was washed and made clean, completely clean, in the blood of Jesus. The result of this was great peace. I longed exceedingly to depart and be with Christ. When my medical attendant came to see me, my prayer was something like this: “Lord, Thou knowest that he does not know what is for my real welfare, therefore do Thou direct him.” When I took my medicine, my hearty prayer each time was something like this: “Lord, Thou knowest that this medicine is in itself nothing, no more than as if I were to take a little water. Now please, O Lord, to let it produce the effect which is for my real welfare, and for Thy glory. Let me either be taken soon to Thyself, or let me be soon restored; let me be ill for a longer time, and then taken to Thyself, or let me be ill for a longer time, and then restored. O Lord, do with me as seemeth Thee best!