Space aliens who have come to the Earth seem to have the spiritual ability in addition to far advanced material technology and science than ours.
They seem not to need radio waves in their communications among themselves and with their home planets. Otherwise, their existence should be easily confirmed by our radio technology.
Even some people in the Earth claim that they can communicate with space aliens in UFOs through telepathy. Telepathy is not based on our material science but based on psychic or spiritual ability. It proves that space aliens can use spiritual energy.
However, Akinori Kimura who claims that he was taken to a UFO by space aliens in a paranormal manner wrote that he was shown material fuel of the UFO. It seemed to be made of some new type of atoms Kimura had never seen in the Earth. This testimony means that the UFO moves and flies by use of material technology and science, no matter how much advanced. It also tells that these space aliens are not completely spiritual; they depend on material.
If those space aliens coming to the Earth on board UFOs have the full ability to use spiritual energy, they should not need material fuel and material mechanism. They should also have no need to abduct human beings or perform mutilation of cattle, etc. in the Earth to biologically study them. Although they can travel space between planets, solar systems, and galaxies in very short time, spiritual energy should allow them to move instantly or without taking any time to anywhere in this material universe. From the beginning, spiritual entities do not need any vehicles such as UFOs. Those space aliens look more materialistic than spiritual, although they can use telepathy.
This means that those space aliens are not spiritual entities like angels. But, as they can use part of spiritual energy, they should be able to come in and out of the spirit world. And, there are also evil spirits and Satan in the spirit world as well as holy spirits. They might link to evil spirits and have evil intensions in their coming to the Earth.
That is why we should be cautions in handling space aliens. Although they seem to try to prevent human beings from using nuclear weapons, it might not be based on good will. They might simply intend to take the Earth not radiologically contaminated out of human beings. When the mankind in the Earth go extinct, those space aliens might take over the Earth. Till the time comes, they should want the Earth not to be radiologically contaminated; they should want to get the Earth with sound nature.
However, as those space aliens have the science and technology far advanced than ours, we cannot deal with them. We are just in a state of being allowed to exist as we wish by space aliens. They can destroy us at any time at their will. But, holly spirits and angels in the spirit world must be suppressing them. We are protected by the God.
Therefore, to cope with space aliens, we have to strengthen and enhance our faith in the God.
Mark 1, King James Version
25 And Jesus rebuked him, saying, Hold thy peace, and come out of him.
26 And when the unclean spirit had torn him, and cried with a loud voice, he came out of him.
27 And they were all amazed, insomuch that they questioned among themselves, saying, What thing is this? what new doctrine is this? for with authority commandeth he even the unclean spirits, and they do obey him.
28 And immediately his fame spread abroad throughout all the region round about Galilee.