Thereupon Shivãnand Swãmi asked, “How can a devotee of God who does not possess discretion of what is good and bad as described by Shriji Mahãrãj, and who also lacks vairãgya, cultivate such discretion and also cultivate vairãgya towards all objects other than God?”
Shriji Maharaj replied, "If one develops firm affection for God from the initial stages, then due to that affection, discretion and vairagya will automatically develop. Now, consider the following. When one is attracted to an object, it is called affection or desire. Then, if someone were to obstruct the gaining of any object for which one has affection, one would become angry on that person. This applies not only to humans; even animals express such anger. For example, a buffalo that is attached to a female buffalo out of lust will kill another buffalo that approaches the female; this behaviour is widely observed in all types of animals. In the same way, one with deep affection for God immediately becomes angry on any object that acts as an obstruction in that affection, and he immediately shuns that object. Therefore, one who has deep affection for God automatically develops vairagya as well as discretion."  
 

[Gadhadã III-14]