https://www.LDS.org/general-conference/ ... _&lang=eng
About this time she read a book of the writings of Mother Teresa, who had shared similar feelings. In a 1953 letter, Mother Teresa wrote: “Please pray specially for me that I may not spoil His work and that Our Lord may show Himself—for there is such terrible darkness within me, as if everything was dead. It has been like this more or less from the time I started ‘the work.’ Ask Our Lord to give me courage.”
Archbishop Périer responded: “God guides you, dear Mother; you are not so much in the dark as you think. The path to be followed may not always be clear at once. Pray for light; do not decide too quickly, listen to what others have to say, consider their reasons. You will always find something to help you. … Guided by faith, by prayer, and by reason with a right intention, you have enough.”5
My friend thought if Mother Teresa could live her religion without all the answers and without a feeling of clarity in all things, maybe she could too. She could take one simple step forward in faith—and then another. She could focus on the truths she did believe and let those truths fill her mind and heart.
I found this article while looking at a non-believing active LDS' blog. At least the writer purports to disbelieve in the church while remaining active and thinks you should too. Of course he is anonymous so he could just be a plant from the Strengthening Members Committee: http://reasonstostaylds.blogspot.com/