Well, vajranaatha-s seem to have realized they have
extremely little chances to find a good comment on YS
that supports their view of practising the siddhis.
Actually, there seems to be at least one suutra that
emphasizes the importance of not becoming attached to
the occult powers, namely IV 29:
prasaMkhyaane 'py akusiidasya sarvathaa viveka-khyaater
dharma-meghaH samaadhiH.
So, one has to remain 'akusiida' even in 'prasaMkhyaana',
which means that one "has" 'viveka-khyaati' in every way
(sarvathaa).
It doesn't seem possible to know whether one is 'akusiida'
e.g. towards the occult powers unless on can "master" them,
now does it?!
So, siddhi techniques are somewhat paradoxical: to "attain"
samaadhi (III 3) one needs to practice them (saMyama) but for the highest state
of samaadhi (dharma-megha), one has to treat them
as any other everyday skill: *yogastaH* kuru karmaaNi!
