Kratu is a Vedic sacrifice, intelligence, power, ability. Kriya is
action.
Balakhilyas -- are a class of Rishis 60,000 in number, of the size of
the thumb, and are said to precede the sun's chariot. The word literally
implies stunted in growth like infants. These Rishis are said to burn
brightly with the spiritual fire of asceticism. The number 60,000 is
significant. It indicates a correspondence.
Perhaps the Rishis represent the sense perceptions which are guided by
the Adhidevas who have their abode in the heart of the sun. The
Balakhilya Rishis are therefore said to accompany the sun's chariot.
Their connection with Vedic sacrifices is also intelligible, as they are
generally directed to the Adhidevas.