'The son of a cow' signifies the celestial natural level and natural exterior good.

(Odkazy: Arcana Coelestia 2184 [1-7], 4244)

5107. 'Do not interpretations belong to God?' means that the Divine is within them. This is clear from the meaning of 'the interpretation', when used in reference to dreams, as that which these hold within them, as just above in 5105 - that which is Divine being meant by 'God'.