We can develop practice by meditating regularly with sincere effort and by performing any action with one-pointed attention. Non-attachment can be a little trickier to cultivate. If we look deeply into any situation that causes us to suffer, we can usually find that we are wanting something so much (recognition, admiration or some experience that we enjoy), that we become disturbed by not getting it. We unintentionally make our peace of mind dependent on acquiring or achieving something.
It can be difficult to observe and analyze our struggles with the clarity and neutrality to see the underlying motives that give rise to suffering. Here again, practice compliments the effort to free ourselves from attachment by calming the mind sufficiently to look deeply and objectively at our desires. When we are able to see clearly what we are holding onto in an unhealthy way, we then have the choice to let go.
These two elements of spiritual life empower us to free ourselves from the illusion that we can gain happiness by arranging the people and events around us make our lives happy. It is ultimately our choice. We can all gradually build the mental strength to focus our minds in selfless ways that align our behavior with the Cosmic Will and reveal the natural peace that has always been there.