A. According to the Bible, man can’t have eternal happiness or find salvation because of the original sin he committed in the beginning of time. The sin was eating the fruit of the tree of life, and as a result, our mind became discriminating, which prevents us from seeing God. The Bible says that we can be forgiven for the sin and find salvation only by believing in God.
To find salvation means to return to the original state prior to eating the fruit. And to believe in God means to see God, just as the old saying goes, ‘Seeing is believing’. Seeing God is possible by removing the discriminating mind.
The Sutras say that whatever good things we may do, we can’t enjoy eternal happiness without life and death, even though we can enjoy temporary happiness, unless we realise the true-self by removing the discriminating mind.
The core teachings of Christianity and Buddhism are the same in that we can enjoy eternal happiness by eliminating the discriminating mind. Zen meditation is a practice to remove the discriminating mind.
So, to help Christians to remove their discriminating mind is to help them to overcome original sin.