[3]. I.e., sometimes towards the east or north, and sometimes towards the south or west, sometimes bringing glad tidings of rain etc., and sometimes bringing torment.
[4]. of sun, moon, stars, etc.
[5]. of seas, rivers, trees, mountains, etc.
[6]. All this is for your benefit, so that the grace that is reaching more and more people may cause thanksgiving to overflow to the glory of Allāh.