
The spirit soul has free will, being made in the image of Govinda in a percentage of qualities. At some point, expressing our unlimited potentials, some of us wish to play games, to exercise our free will, like teenagers moving out of the house, or like skaters emboldened to skate even on what appears thin ice, or hearty souls adventuring into the forest in a new territory...
and so may temporarily venture away from the realm of Vaikuntha or Goloka.
It is not all negative! It is not necessarily "envious". It is a positive expression of Krsna's love, such that He allows us our freedom to choose, even if sometimes we choose something bold or temporary. It's a POSITIVE CHOICE, not a "fall down", nor some envious horror story, that leads to the jiva's adventures in independence and material temporary existence. The consequences may be horrid, however, when we misuse this independence. Actually, we are not independent, it is an illusion for our own sake.
So we may