The Jewish path is threefold. Of course the three work together as one. Study of Torah leads to deeper intellectual understandings, prayer cultivates attitudes of gratitude and forgiveness, and deeds engage the body. These are fine principles that we can all agree with. The golden rule as stated here in Leviticus is the foundation of morality in the West.
Anger becomes an angry person's god.
Therefore, they provide a model or test that anyone can do at home. It's wonderful that a discussion on loving kindness can be brought into everyday life because it implies that we have much more of an opportunity to practice kindness than we thought. And that is precisely the point. Even when borrowing a lawn tool, a rake or a shovel, we have the chance to understand where we are in our practice of loving kindness and what sort of difficulties we struggle with to overcome even minor irritations and annoyances. These small tests give us a preparation for the larger tests in life, which can come at any time.