We can assist them in contacting us by learning to increase and raise our energy — by doing so, we’ll help in the communication by meeting them halfway. So, to answer the question, no, I don’t believe that anyone can become a medium. Rest assured, if you have the gift of mediumship, it’s likely to present itself in its own way and in its own time. My last piece of advice with respect to this question is on a somber note. I do not recommend this as something that you should dabble with. It’s such a serious subject and one that requires both delicacy and tact.
Modern spiritualists and psychics keep detailed files on their victims. As might be expected, these files can be very valuable and are often passed on from one medium or psychic to another when one retires or dies. Even if a psychic doesn't use a private detective or have immediate access to driver's license records and such, there is still a very powerful technique that will allow the psychic to convince people that the psychic knows all about them, their problems, and their deep personal secrets, fears, and desires. The technique is called cold reading and is probably as old as charlatanism itself... If John Edward (or any of the other self-proclaimed speakers with the dead) really could communicate with the dead, it would be a trivial matter to prove it. All that would be necessary would be for him to contact any of the thousands of missing persons who are presumed dead—famous (e.g., Jimmy Hoffa, Judge Crater) or otherwise—and correctly report where the body is. Of course, this is never done. All we get, instead, are platitudes to the effect that Aunt Millie, who liked green plates, is happy on the other side.
But here's the interesting part: the writing samples produced were analyzed and it was found that the complexity scores for the psychographed content were higher than those for the control writing across the board. In particular, the more experienced mediums showed higher complexity scores, which typically would require more activity in the frontal and temporal lobes--but that's precisely the opposite of what was observed.