We're very lucky to have Acharya Judy Lief writing commentary on the lojong (mind-training) slogans at tricycle.com. As she writes in her introduction to Chogyam Trungpa Rinpoche's classic Training the Mind, "Through slogan practice, we begin to realize that our habitual tendency, even in our smallest gestures, is one of self-centeredness." She also writes that the slogans "form a loop in which nothing is excluded." The playful and sometimes ironic tone of the slogans should not fool us: Lojong is a complete path of practice all on its own.
She has a new post up today discussing absolute and relative bodhichitta, in which she writes: