Many of us wonder why God would allow the devil to bother us at all. But it is actually to our own benefit.
Our successes are actually shaped many times by our numerous failures. The spiritual scars we carry are there is a reminder that nothing is ever gained in life without a little toil and effort.
”There are said to be five reasons why God allows us to be assailed by demons. The first is so that, by attacking and counter attacking, we should learn to discriminate between virtue and vice.
The Second is so that, having acquired virtue through conflict and toil, we should keep it secure and immutable.
The third is so that, when making progress in virtue, we should not become haughty but learn humility.
The fourth is so that, having gained some experience of evil, we should ‘hate it with a perfect hatred’ (cf.Ps. 139 : 22).
The fifth and most important is so that, having achieved dispassion, we should forget neither our own weakness nor the power of him who has helped us. ”
Source: St.Maximos The Confessor – Second Century On Love – Para 67 – Page 76