Seeing those essays, I just wish to mention that very often, experts speak in their own language, and to understand any one of them, you really need to know what all of them are saying so you can fit it into the big picture.
I have only looked at the first two so far, but there seems to be very little context provided, which I think makes them very hard to understand.
Once the patient has begun to sense the first, even though weak, sensations of orgastic streaming in his body, especially in the genital, the feeling of contactlessless is no longer tolerable. Just as the general feeling of contactlessness, regardless of which psychic layer it is found in, is merely the general reflection of orgasm anxiety, that is, fear of orgastic contact, so too it completely disappears of its own accord when the capacity for orgastic contact has been realized.
I have quoted this as an example. It seems like he attributes schizoidal 'contactlessness' entirely to 'orgasm anxiety'. Needless to say, it would be hazardous to read too much into this without seeing this its broader context. Not being a psychologist, I'll not attempt to do that.