We Buddhists are supposed to save all sentient beings, but practically speaking, this may be too broad a notion for most people. In any case, we must at least think in terms of helping all human beings. This is very important. Even if we cannot think in terms of sentient beings inhabiting different worlds, we should nonetheless think in terms of the human beings on our own planet. To do this is to take a practical approach to the problem. It is necessary to help others, not only in our prayers, but in our daily lives. If we find we cannot help another, the least we can do is to desist from harming them. We must not cheat others or lie to them. We must be honest human beings, sincere human beings.
From Answers: Discussions with Western Buddhists,