"The value of the "Grace Abounding,"... as a work of experimental religion may be easily overestimated. It is not many who can study Bunyan's minute history of the various stages of his spiritual life with real profit. To some temperaments, especially among the young, the book is more likely to prove injurious than beneficial; it is calculated rather to nourish morbid imaginations, and a dangerous habit of introspection, than to foster the quiet growth of the inner life. ...Only those... who have known by experience the force of Bunyan's spiritual combat, can fully appreciate and profit by Bunyan's narrative. He tells us... that it was written "for the support of the weak and tempted people of God." For such the "Grace Abounding to the chief of sinners" will ever prove most valuable. Those for whom it was intended will find in it a message of comfort and strength."
January 1, 1970
https://en.wikiquote.org/wiki/John_Bunyan