Prayer is a Battle
There are numerous things that we put a lot of effort into; how about prayer? Prayer presupposes effort. Father Mark encourages us to understand properly that prayer is a battle. The paragraphs from the catechism he exhorts us to read are 2725-2745 (see link below). Take a listen from his podcast (don’t forget to hit subscribe if you haven’t done so already).
Catechism 2725-2745 http://ccc.usccb.org/flipbooks/catechism/654/index.html