It is be said that these twelve do not exist simultaneously, then the consequence would be that there would be death in dreamless sleep. But as there is no death in dreamless sleep, it must be admitted that these twelve exist simultaneously as regards themselves but of past separately from the Soul. The co-existence of those twelve with the Soul that is ordinarily spoken is only a common form of speech with the vulgar for ordinary purposes of the world.
तेषामयुगपद्भाव उच्छेदो नास्ति तामसे। आस्थितो युगपद्भावो व्यवहारः स लौकिकः॥