There are limitless reasons we can justify not chanting Hare Krishna, going off on our own, trying to find something easier to do, complaining because the situation just isn't what we want it to be. But if we want to actually make real spiritual advancement, if we want to really show gratitude, ‘How could I best assist my guru, my gurus in assisting in Srila Prabhupada’s mission?’ Because really, there's nothing else we can do that will please Krishna.