8.27 Naite etc.  The idea here is this :  [That  Yogin does not get deluded]  who knows  these two courses by adopting 'the internal method' ,  approved by the  [school of]  Yoga practice.  This point, if explained in detain, would lengthen our treatise.  Hence let us stop  here.  Therefore  etc.  Whatsoever are the  [units of]  time that are internal let one practise  the Yoga that is concerned with them all. 
 
Our preceptors have however said as :   So far the peculiarity in the passing away  [of the Yogins],  as indicated by the internal times, has been described, in the middle of the discourse,  for the benefit of one and all.  Having done this, now the chief  topic, under consideration, regarding the external units of times, is being wound up by the words  'Therefore, concerned with all times etc.'