At first it teaches that the sense of life is incessant fighting against egoistic longings and replacing them with sacrifice and charity. The one who does not do this loses, and suffers in Hell; the one who does it, trusting not in his own, but God's power, triumphs and is happy in Heaven. The work of Scupoli analyses various usual situations and advises how to cope with them, preserving a pure conscience and improving virtue. It emphasizes also the boundless goodness of God, which is the cause of all good. What is bad originates from the human who rebels against God.

    First published in 1589, it was the favorite book of St Francis de Sales. Vigorous, realistic and full of keen insight into human nature, this volume consists of short chapters based on the maxim that in the spiritual life one must either "fight or die " It shows clearly how the Christian must combat his passions and vices in an intelligent method, in order to arrive at victory, rather than running around blindly beating the air. Fr Scupoli explains how to concentrate one's energies in order to make constant progress in acquiring virtue, with particularly specific advice for overcoming the vices of impurity and sloth. The Spiritual Combat is one of the greatest and best known classic on the spiritual life that will inspire and instruct readers of today just as it has for over 400 years.