The burden of proof, lies only in the seeker of truth. And the spirit world lies mostly outside the physical world. There is no need to prove it in the physical world to anyone who is not seeking it. Moving your awareness into the dream realms and then through to the Astral plane will only prove it to you, no one else. If I told you, you are a being of Light that exists in another dimension, operating this human body that you helped create, set into motion, and are now expierencing through an attached cord, I could never prove it. I could tell you, it is possible to move your awareness outside the physical body, towards and then into this Light being that you truly are, for a time. Or I could say it is possible to bring your Light from the inner realms, the inner dimensions, into this one as Jesus did.
You shouldn't believe me, until you accomplish the expierence yourself, at that point, you will know the truth of it, but no one else will believe you. The physical mind cannot hold this truth that lies beyond it's death. So why all the fret over who is right and who isn't, it doesn't really mater. The absolutes are simply, we will all die, we will all either pass back across to the astral, like we do most every night, where we already exist now and then move into the Light, or we will all cease to exist. The only possible motive to want to argue about it is to gain control over others, in the emotional realm, and in the mental realm. Professing you know something, that they do not know, that can help or save them in some way in the afterlife. This is absurd if you really think about it. Do you really think that your "astral body" is any less capable then anyone elses', do you really think anybody here in the physical realm can teach you anything usefull about that body. LOL.... I think it so hysterically funny, the notion that I should cringe before anyone claiming such knowledge here in the physical.