Alarum,
I think that they(dvinnihwa) are referring to the practise of Karezza, where you train yourself to not ejaculate outwardly but, instead, retain the fluid within the bladder. Retro-ejaculation. And I don't recommend it for younger males as one can develope a syndrome where it happens all the time, thus making it difficult to conceive. And before I'm roasted for this last statement, Karezza can be learned with the proper yogic exercises...the trouble is that most don't wish to find someone who can properly teach them the full exercise. (IMG:
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