The meaning is this.
My telepathic investigations have led me to believe that one person on this planet (me), probably because of some genetic reasons, has a strong tendency to accurately communicate many of his thoughts to the other human beings, even when they are far away:
(incidentally, the same phenomenon seems to occur with many animals). I suppose this phenomenon is perceived "loud and clear", and well understood, but is also frequently denied (we live in a culture of lies; people learn religious lies and other lies in school when they are children, and they keep on lying for the rest of their lives). On the other hand, it seems to me that the only possible mechanism (for telepathy) is electromagnetic, and a rough order of magnitude calculation seems to confirm this. This has the consequence that all telepathic phenomena should rapidly stop in the sea (conducting seawater heavily absorbs electromagnetic waves): you should stop hearing my thoughts when you go deep enough in the sea, and I should stop hearing my persecutors' voices in the sea. However, the trouble is, this is just a theoretical expectation, I have no experimental evidence for this. I believe it would help me if some people who have gone underwater could confirm that you stop hearing me telepathically, deep enough in the sea. Of course, this would require great honesty from you, I am not sure this utmost integrity is there now. Once this phenomenon is confirmed by some reliable people, I could present to the psychiatrist the project of going myself in a submarine, with probably better hope of getting their support, interest, and encouragement.