To live on a vegetarian diet is a part of Buddhist practice. The question of eating and drinking is vital to all human beings. In order to live man needs food, and as a prince, Shakyamuni Buddha expressed this in a meaningful sentence: "The life of one depends on another's death." We all like to live safely from the day we are born into this world, yet we kill many living beings, either intentionally or not, in order to stay alive.
We eat, we drink, we breathe, we lie down, we stand, we walk, we perform many actions by which, without being aware of it, we affect many lives. In this way we cause trouble for many living beings around us. But ours are definitely not the actions of the cruel people who kill to make fortunes, or only for pleasure or for the sake of reputation. If our lives are not the cause of the suffering or death of other living creatures, then the lives we live are blameless. If we aspire to attain such a goal, it will help a great deal if we become vegetarians.
The Northern Vehicle of Buddhism follows the Path of the Bodhisattva called the Bodhisattva-marga. These Mahayanists observe the Bodhisattva precepts, one of which is the prohibition against partaking of food that is prepared using the flesh of an animal. This prohibition is called Tapasa Shila-vrata, and is a practical rule for eradicating the evil of wrath. It is described in detail in the Maha-Simhanada Sutra, The Sutra of the Great Lion's Roar, and has received the special name of a Bodhisattva precept. This Bodhisattva precept proscribes the eating of food prepared from the flesh of an animal, and was observed by Lord Buddha when he was called Shakya Bodhisattva, before he attained Enlightenment.
Thus, following a vegetable diet as practiced by Buddhists is not for the sake of attracting attention or winning approbation. We simply eat vegetable food. This practice is one of the utmost importance. The more we Buddhists practice vegetarianism, the better are the results we get.
What is vegetarianism? Vegetarianism is the abstention from flesh foods and is a practice, which results in the purification of the body. We have plenty of plants, fruits, and vegetables at our disposal, and we should live on them. We should never take fish or the flesh of animals, who also cling to life and fear death as we do.
Why should one eat vegetable food? Out of compassion and because of equality. During the lifetime of Lord Buddha, the Venerable Ananda once asked, "Revered Bhante, why did you allow us formerly to partake of three kinds of "pure flesh"? This is when a monk has not seen the creature being killed or heard its cries while it was being killed and has nothing to suspect regarding specially arranged slaughter on his account. But now you do not like for your disciples to eat meat or fish?" Lord Buddha replied, "O Ananda, in the beginning your standard of knowledge was of a low level. You had no capacity to receive the high Doctrine. So, when I preached the primary tenets, I allowed all of you to partake of three kinds of "pure flesh." But now your knowledge is mature enough to understand the highest Doctrine. Therefore, I do not like for you to eat meat and fish. To do so means to kill living beings; if we do not do so directly, we do so indirectly. Thus we lose the "seed of compassion and equality," and it is difficult to attain Arhatship in such a state (Maha Simhanada Sutra).
Lord Buddha has clearly taught us to live on a vegetarian diet so as to nourish a compassionate heart and preserve the "spirit of equality," with regard to all creatures. When a Buddhist has decided to follow the Doctrine of the Compassionate One there is no reason why he should not practice compassion in his life and thought, deed and word, and also in connection with eating. If we want to eat flesh for the sake of taste, we should not be so heartless as to look at decapitated and dismembered animals. We shall be called hard-hearted if we watch animals that are struggling on the chopping block or the butcher's table. How then can we call ourselves Buddhists?
In conclusion we would say that Buddhists as well as members of other religions ought to have vegetable food. We have shown that from a religious as well as a scientific point of view there are countless benefits, which accrue to a pure vegetarian. Therefore, all who want to have healthy, energetic bodies and keen minds and lead a harmonious life should have vegetable food. Living on vegetables makes us happier in comparison to those who live on the "blood and flesh" of animals.
Those who are Buddhists and try to follow in the footsteps of the Buddha should practice vegetarianism. Then they may more easily attain Arhatship on account of their enlarged compassion and understanding of the spirit of equality.
It is said that speaking is easy, but practice is very difficult. None the less, men of good will and virtue will always try their best to lead a life of altruism by practicing vegetarianism as instructed by Lord Buddha.