Explain the lines 'I am dotted silver threads dropped from heaven’ and 'I am beautiful pearls, plucked from the crown of 'Ishtar'

The rain is divine. When it falls from the sky, it appears to be like silver threads. It calls itself silver threads as it connects heaven and Earth. The poet has compared raindrops to the pearls in the crown of the Babylonian mother Goddess Ishtar. The raindrops falling makes the poet feel as if nature has plucked pearls from the crown to decorate the Earth.