Son of Israel is the nation which had the biggest volume of Prophets, Miracles, and clear materialistic seen-signs from God, but was it beneficial? Or did it turn results vice versa? Well, unlike what we may all think, that if we see clear seen-signs from God we would believe more, God gave us a great lesson from son of Israel’s stories, that materialistic signs breakdown your belief. Let’s know why:
Atheists have less brain functions
A new study performed at the University of York used targeted magnetism to shut down part of the brain. The result: “belief in God disappeared among more than 30 percent of participants.“
“The study proves that when you shut down the part of the brain most associated with logic and reasoning, greater levels of atheism result.“  Said Dr. Joel McDurmon
The findings, published in the journal Social Cognitive and Affective Neuroscience, reveal that “People whose brains were targeted by TMS reported 32.8 percent less belief in God, angels, or heaven.“ 
The more materialistic, the narrower our minds
In a TED video speaking about our motivations, especially when it comes to money, and according to lab tests and groups surveys that making money as a materialistic motivation actually narrowing participants minds for solving the problem:
Results: God Manifestation is a mind trap
You see Muslims praying, but you see nothing in front of them, not a statue, not a picture, nothing. God manifestation in Islam is the utmost forbiddance, meaning it’s the biggest sin of all big sins. It’s the one and only sin which God doesn’t forgive, it’s associating other gods with The One God, cause simply no matter what, you’ll never be able to imagine God. Because it’s the manifestation of The One Who created this heaven, which we still can’t recognize limits for. Manifesting Him isn’t only a silly copy from an existed creature with a little silly recognition, adding many arms for example, but it’s also against logic, science, and clear mind understanding. It’s a deceive that will be uncovered someday, like knowing for sure that neither The Creator nor His servant Prophet Jesus is flying over our earth. Results are: churches in Europe are closing doors.  and no matter what it looks like, faith wins over materialism:
How to know God without seeing Him?
So, manifesting God isn’t only a huge sin and a poor imagination by our minds that yet didn’t realize limits of skies we’re living under, but it is also limiting our logic for solving problems, reasoning and using logic, but how to know God without seeing Him?
Rule in Islam is to know Allah (The Creator of Heavens and Earth) from what He described Himself by, from authentic sources that didn’t expose to human interferes, with no denial of any of what he described Himself by, nor manifesting of them. So when God says that He Has a Hand, we prove that for God and we don’t deny, BUT, also we don’t describe –as humans- how His Hand is. We say, we declare the What which He described Himself by, but we don’t know the How. So we don’t claim that God might have nails for example, as this go to the How of His Hand. But we just prove for God what He said on Himself only.
When we see God, the story will come to its end
Do they await but that Allah should come to them in covers of clouds and the angels [as well] and the matter is [then] decided? And to Allah [all] matters are returned.” (110) Ask the Children of Israel how many a sign of evidence We have given them. And whoever exchanges the favor of Allah [for disbelief] after it has come to him – then indeed, Allah is severe in penalty.“ (111) [Quran.com/2].
Moses asked God to see Him, so what happened?
And when Moses arrived at Our appointed time and his Lord spoke to him, he said, “My Lord, show me [Yourself] that I may look at You.” [Allah] said, “You will not see Me, but look at the mountain; if it should remain in place, then you will see Me.” But when his Lord appeared to the mountain, He rendered it level, and Moses fell unconscious. And when he awoke, he said, “Exalted are You! I have repented to You, and I am the first of the believers.” [Quran.com/7/143].
 Same as previous.
 Europe’s Empty Churches Go on Sale, By Naftali Bendavid, Jan. 2, 2015 7:36 p.m. ET: Hundreds of Churches Have Closed or Are Threatened by Plunging Membership, Posing Question: What to Do With Unused Buildings?