What is the secret behind the notion of ‘Judgment Day’ in Christianity?
Christianity says a judgment day will come. At that time all those below the earth, the dead bodies will rise and be asked about their right and wrong deeds. According to which they will be sent to either heaven or hell.
The understanding changed from the original meaning due to time and various interpretations.
Today what is believed and discussed as 'Judgment Day' is not what it was originally. The place where Christianity and Islam were born had a scarcity of wood. The land there had only stones and mountains. At that place burying was a better alternative. It was not expensive.
In India there was a lot of wood, so the tradition of burning the dead bodies began. Whereas in the land of Islam and Christianity, burning the dead was not possible. So according to the country and time people would do certain practices.
The interpretation people have maintained is that, on the Judgment Day, the dead would get up from their samadhi, but it is not that. In the Bible, it is said "Judge not and ye shall not be judged". Christ asks not to judge (criticize) and leave the judgment only on God, and one day He will look into the judgment.
In India, we have faith in Karma, which means you will have to reap the result of all your acts. Good deeds will bring joy and bad will bring misery. Similarly, in Christianity they say not to judge and that everyone will have to bear their cross.