In this world, no matter what we have, we should leave them behind when we leave the world, including our most beloved ones, the most cherished wealth and the best treasure, none of which can be taken away by us. At that time, we are very, very lonely. Nobody would like to go with us, even if they do, they are not permitted. For example, when our wife or husband passes away, it's not possible for us to go with them even if we want to.
When we read Buddhist sutras, we hear Buddha say, if we recite the name of Amitabha Buddha, worship the Buddha and believe in the Buddha, we will never come back after we leave this world, and we will be with Buddha forever. We hear the Buddha say this and we believe it, but it can never be as true as our own experience of his coming to receive us. If we know Buddha will come to receive us, our belief will become more firm and real and we will be more grateful to Buddha. Our faith will become stronger and stronger.
Each time when someone is born, he carries with him the bad or good consequences, which we call Karma, and are sown from life after life. With the "past karma" following closely behind, "fixed karma" on the shoulders, and "immediate karma" in the front, we cannot run away. When can we pay off all these karma? Never. That is why there should be Bodhisattvas reincarnated to this mundane world to deliver us, help us and take us up, otherwise we can never leave this place.
Bodhisattvas do not care if we eat meat or vegetarian, or how much karma we have. But if we only practice our speech and mind without practicing in action, karma will still drag us down and affect the level at our death, because this is the law of nature. Eating meat and drinking wine will ruin our body, not to talk about the spirit or soul. This body alone will be affected a lot.
We have the opportunity to become Buddha every life time we are reborn as humans. But every life time, we have a lot of hindrance and are surrounded by Maya's obstructions, and there's no way to get acquainted with good and wise people or a high-level method. That's why we cannot be liberated. It's very pitiful. Even if we meet the good and wise people, we are still doubtful and cannot believe his teachings right away. However, it's still better than not meeting them, because no matter what, we will be influenced by him and receive a few seeds for our merit field. Anytime we want to use the seeds, they are ready for our use.