Or, consider this way. This is one dhāraṇā in the forty-seventh and forty-eighth [verses]. This is only one technique of process. Dehāntare tvag vibhāgaṁ bhitti bhūtaṁ vicintayet. You have to imagine
not yet formally done — never invented
attention-seat: skin/body-wall · do: imagine the skin-partition wall-less; supportless meditation