The purpose of spiritual growth is to move away from the animal nature into the more human nature that God intended for us to have. Meat eating inhibits this. The animal instincts become more powerful every time you eat meat. When animals are slaughtered, fear and aggression enzymes are shot into their cells from their glands and other organs, just as in humans, and are part of the dead carcass that goes on to the food store. They remain in the meat until the consumer ingests those same enzymes, which are molecularly very similar to those found in humans.
Most spiritual people believe in the aura.
Kirilian photography shows us that a force field remains around dead or amputated tissue. You adopt that animal aura when you eat a dead animal. If so, meat eating is urgently prohibited. Meat is the most inefficient form of food to produce. That could pose quite a threat to the dwindling and endangered water supplies.