The first requisite is food. This is the first thing people need when they are born and continue to need from then onwards. Food and drink are big business as all living beings must eat and drink to keep themselves alive. Eating and drinking must be based on learning. It is no good just following one’s own desires and blaming others when you imbibe something bad. It is said, "Don’t classify food. If you do, you will get caught up in all sorts of trouble." You can see the truth of this when people argue with each other about eating and create divisions between themselves; as, for example, when someone says, "I’m vegetarian, so I’m cool. You are bad, because you are not vegetarian." Food is food, whether it is vegetarian or non-vegetarian. People must understand the object of eating why they eat. They eat because eating will keep them alive. There is a saying, which can remind people of the objective of eating: "Eat to live, not live to eat." People must also understand that eating anything must be harmful to something. If they don’t hear the scream of butchery, it doesn’t mean that there is no loss of life. With understanding, they can stop all argumentation and judgement. As food is the first necessity, it is therefore necessary to learn to eat as well, so that one can remain healthy.