2.18 Antavantah etc.  The bodies, at the time of their attaining the unobservable stage,  meet their apparent destruction.  This would be impossible if they do not suffer the peculiar destruction,  that it to say they undergo changes every moment.  For, it has been said-
 
'By observing the dilapidated condition of beings at their last moment, the loss of newness is very moment is inferred'
 
The same has been said by the Sage (Vyasa) also as-
 
'In every being, in every moment, there is mutual difference between its tiny parts that have different purposes.  But on account of its subtlity, it is not cleary comprehended (MB, Santi.,  Moksa. Ch. 308, verse 121).
 
[In theabove passage] having different purposes amounts to say 'because they perform different acts having their own respective special purposes.;
 
 Now, the bodies have thier end and are ever changing.  On the other hand, the Self is destructionless,  because It is incomprehensible.  Changing nature belongs only to the insentient thing which is comprehensible, but not to what is non-insentient and is exclusively consciousness in nature.  Because, it is not possible [for one]  to gain an altogether different nature.  Thus, the bodies meet permanently their end and hence they cannot be lamented for;  the Self ever remains without destruction (or without changing)  and hence need not be lamented for.  Thus a single  krtya-suffix  has been employed on both the senses simultaneously by the sage in the expression asocyan.