Of the opinion that “I’ll believe when I see it”?
Many things you don’t see but they exist.
I don’t see cell phone radio waves – but obviously they exist – otherwise i wouldn’t be able to use my cell phone. I hear a person knock on the door. I can determine that a person is behind the door – without seeing him.
You can prove something true or false. You can prove something physical exists – but you cannot prove that something does not exist by observation alone. Because you did not observe it – it doesn’t mean that it does not exist – perhaps it eschewed your sight or observation.
Logic and Torah can prove something exists or does not.
I recently heard a Hebrew shiur / lecture in about strange creatures that exist in the world according to Torah. Believe it or not – mermaids, werewolf, demons, dragons, migrant souls, plant men (adnei hasadei) – exist.
Some use “I never Saw G-d.” as a reason to doubt the existence of a creator. I can say the same about radio waves – “I never saw them” – doesn’t mean they don’t exist. By the fact that I can communicate with cell phones shows they do exist.
We already proved beyond a reasonable doubt that G-d does exist. You can even prove that the true religion & law of the world is Torah in 4 steps. but that is not the subject at hand.
The subject is when the Spiritual World intermingles with the physical world. Here are two stories I recently heard. One is kind of scary – but I guess you can handle it.
Someone I know’s friend heard that some gentiles in Eretz yisrael were on the verge of desecrating a Jewish cemetery. The man got a friend and decided to disinter bones from the cemetery of buried Jewish bodies before the gentiles got to them. They planned to bury them to a place that would assure proper respect. After grueling work, they decided to go to sleep and bury them in the morning. They put the bones in their room – for they were too tired to bury them. In the middle of one’s sleep – his mattress flipped over. He put the mattress back and fell asleep again. Again asleep, his mattress flipped over again. He then decided – tired as he was – to bury the bones.
Once a woman was careful to sponsor yeshiva boys to say Kaddish (the memorial prayer) for people who had no one to recite it for them after they died. Her husband died and little by little she started running dry of her former wealth – yet she continued to support the Kaddish. Her daughter met a suitor that wanted to marry her. Yet the mother had no money to pay for wedding. She was walking down the street and an elderly man approached her, asking why she was so sad. She explained her situation. The man decided to write her a check for all the wedding expenses but only after he called two yeshiva boys to serve as witnesses. She went to the bank to cash the check. When the bank manager saw the check he fainted. Once revived – they asked him why he fainted. He explained “Last night my deceased father came to me in a dream saying that – he was disappointed that I didn’t say Kaddish when he died. And there was a woman that did organize it – he wanted her to have this money for his daughter’s wedding. She would be coming the next morning to collect it.”