In these 500 years, development and progress of Christianity, science, and spiritualism have flowed parallel or complementary to each other.
For example, Martin Luther (1483-1546) who introduced Protestantism followed Mikołaj Kopernik (1473-1543) who introduced the sun-centered theory; Isaac Newton (1642-1727) who established the classical dynamics came before Emanuel Swedenborg (1772) who revealed the real state of the spirit world or the afterlife through his experiences; Albert Einstein (1879-1955) who introduced relativity followed Conan Doyle (1859-1930) who studied and diffused spiritualism; and Stephen Hawking (1942-2018) who applied quantum mechanics to the universe came before Uri Geller (1942-) who demonstrated spiritual power through spoon bending, etc.
Indeed, after the Middle Ages, it became clear that Christianity based on the Vatican alone could not save people, or people intensified material desires so much that Christianity based on the Vatican could not control people. Consequently science was promoted to let people know the truth of the material world or respect the power of the God who had created the material world and the nature. But, as materialism based on science went too far, spiritualism started to be introduced to make people understand the relationship between the material world and the spirit world so that they would respect the power of the God more. However, it does not seem now or at the first half of the 21st century that people have come to respect the God all the more.
From the beginning, everybody knows that he lives in this material world with his own mind. So, it is natural that he wants to know what this material world is and how his mind works. Religion and science have been developed to give answers to these questions. But, now that is 2000 years after the first Advent of the Lord Jesus Christ science and religion have not yet present clear answers to these questions.
The reason for this situation should be that they do not have clear understanding of spirits, the spirit world, and the spiritual energy. And they cannot show spirits, the spirit world, and the spiritual energy. Truly, unless the Lord Jesus Christ have come to this material world to perform various miracles like those depicted in the Gospels on TV, etc., people would not believe in existence of spirits, the spirit world, and the spiritual energy.
So, Marian apparition should be made not in Fatima, or other remote and local places but in New York, London, and any other big cities. Psychics should perform more drastic phenomena than spoon mending by will. Communications with spirits of the dead should be performed in more scientific and public environments. In other words, governments in the world should spend more money and use more resources.
Then, people should understand the real meaning as to why the Bible states that the God created this world through His words and light appeared. People would be relieved from wondering why they were born in this material world and where they would go after their death in this material world.
But for various reasons we cannot still fully comprehend, we have been allowed only to see limited spiritual phenomena. Indeed, people are absorbed in making money more than in pursing the true sate of spiritual conditions around them. As there are the only limited number of people who have very pure, storing, and deep faith in the God at the bottoms of their hearts, spiritual or super-natural phenomena are directly presented to the only limited number of people.
Nonetheless, the material civilization is going to collapse in this century, we have to turn our eyes to spiritual matters from material desires. We have to rebuild a spiritual civilization after the collapse of the current material civilization. Therefore, people should pursue spiritual phenomena all the more. In order to have the ability to cause spiritual phenomena, we have to have purer, stronger, and deeper faith in the God:
20 And Jesus said unto them, Because of your unbelief: for verily I say unto you, If ye have faith as a grain of mustard seed, ye shall say unto this mountain, Remove hence to yonder place; and it shall remove; and nothing shall be impossible unto you. (Matthew 17)
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John 8, King James Version
28 Then said Jesus unto them, When ye have lifted up the Son of man, then shall ye know that I am he, and that I do nothing of myself; but as my Father hath taught me, I speak these things.29 And he that sent me is with me: the Father hath not left me alone; for I do always those things that please him.
30 As he spake these words, many believed on him.
31 Then said Jesus to those Jews which believed on him, If ye continue in my word, then are ye my disciples indeed;
32 And ye shall know the truth, and the truth shall make you free.