On the other hand, it is permissible to slaughter cattle for our own survival. In order to save ourselves from starvation, we need to kill animals at times, but it is incumbent upon us to feel gratitude to them for providing a source of our existence and also to exert ourselves to act in our capacity as protector of the ecosystem. Insofar as our existence is dependent on and sustained by other living beings, we must learn to live with minimum needs and to be content with what little we have. Rather, we must practice the bodhisattva way through our willingness to share the suffering of the impoverished and by making every effort, working together with them, to bring them out of their predicament. Even then, the presence of those realities is the truth.
Environment is like the shadow and life, the body.
Without the body there can be no shadow. Similarly, without life, environment cannot exist, even though life is supported by its environment. In other words, human beings and the environment influence each other in a chain of actions and reactions, beginning with human activities and their formative impact on and subsequent changes in the environment. These in turn induce human reactions and adaptation to the changing environment. Human beings and their environment are both historical entities that keep changing in biological ways and cultural ways, as well as in the dimension of life.