Translation of the verse 7 from Surah Adh-Dhariyat : Number of verses 60 - - page 521 - Part 26.
By the heaven full of paths,
By the heaven containing pathways,
(51:7) By the heaven with its numerous forms: *5
*5) The word hubuk in the original is also used for the paths and for the waves which are produced on the sand of the desert and the surface of stagnant water by the wind; it is also spoken for the curls in wavy hair. Here, the sky has been characterized by "hubuk" either because the sky is often overcast with clouds of different shapes, which go on changing because of the wind, and no shape lasts nor resembles any other, or because at night one sees the stars scattered in the sky in many different combinations and no combination resembles any other combination.
Source : Adh-Dhariyat Verse 7: By the heaven containing pathways,