The Buddha told us in the Vinaya that life proceeds in four separate directions: from light to light, from light to darkness, from darkness to light, and from darkness to darkness. If keeping on eating meat, one's life will be going from light to darkness. Of course, if one can avoid darkness through the practice of the Dharma, it will not be a cause for concern. But how sure are we of our practice?
Excerpt from Luminous Wisdom Book Series: The Right View ~ Why Vegetarian?