"Secret Power; or, The Secret of Success in Christian Life and Work" by D. L. Moody is a book about gaining spiritual power from the Holy Spirit to improve one's Christian life. It's a guide encouraging Christians to seek and use this power to achieve their goals and live a more effective Christian life. The writing puts focus on the idea that the Holy Spirit brings effectiveness to a believer’s life. Moody thinks divine guidance and inspiration are necessary for Christians to do well, and he uses the beginning of the book to explain how important the Holy Spirit is for witnessing and working within the Christian religion. It claims that without the Holy Spirit, a Christian's efforts have no meaning, but with that power the work becomes a joy and service to God.

Secret Power; or, The Secret of Success in Christian Life and Work
By Dwight Lyman Moody
Explore how to unlock divine effectiveness for believers through a relationship with God, in order to live a successful Christian life.
Summary
About the AuthorDwight Lyman Moody, also known as D. L. Moody, was an American evangelist and publisher connected with Keswickianism, who founded the Moody Church, Northfield School and Mount Hermon School in Massachusetts, Moody Bible Institute, and Moody Publishers. One of his most famous quotes was "Faith makes all things possible... Love makes all things easy." Moody gave up his lucrative boot and shoe business to devote his life to revivalism, working first in the Civil War with Union troops through YMCA in the United States Christian Commission. In Chicago, he built one of the major evangelical centers in the nation, which is still active. Working with singer Ira Sankey, he toured the country and the British Isles, drawing large crowds with a dynamic speaking style.
Dwight Lyman Moody, also known as D. L. Moody, was an American evangelist and publisher connected with Keswickianism, who founded the Moody Church, Northfield School and Mount Hermon School in Massachusetts, Moody Bible Institute, and Moody Publishers. One of his most famous quotes was "Faith makes all things possible... Love makes all things easy." Moody gave up his lucrative boot and shoe business to devote his life to revivalism, working first in the Civil War with Union troops through YMCA in the United States Christian Commission. In Chicago, he built one of the major evangelical centers in the nation, which is still active. Working with singer Ira Sankey, he toured the country and the British Isles, drawing large crowds with a dynamic speaking style.