瑜伽論記 7.166

7.166

Master Tai says: The former clause explains that because the latter two yogas precede and act as foremost, the meaning of the initial two revolutions of the basis is accomplished; the latter clause explains that with the purification of the revolution of the basis as the foremost support, the latter two yogas are made pure; when what is transformed accomplishes its task, the latter two yogas operate and arise.