“You never change things by fighting the existing reality. To change something, build a new model that makes the existing model obsolete.”
Sin is the act of putting the self (and its extensions: family, race, species) first. The only viable way out of sin (and therefore into grace) is to become ecologically aware: to be constantly mindful of interaction, interdependence and interplay – in a word: communication; especially the listening component.
Strange that the average intelligent person realises full well that they couldn't possibly attempt rocket science or brain surgery without at least a decade of full time dedicated study, and yet they dabble with astral projection or lucid dreaming or other highly advanced meditation techniques after a weekend workshop. And all because they are greedy for experiences they feel entitled to but don't actually deserve.