Verily, in the creation of the heavens and the earth and in the alternation and the sequence of the night and the day and in the ships that sail in the ocean carrying the things which are useful to the people and in the water which Allâh sends down from the clouds with which He brings the dead earth into life and (in) all sorts of crawling animals which He has spread all over it and (in) the turning about of the winds and (in) the clouds subjected to (His) law between the heavens and the earth, there are, indeed, signs for a people who use their understanding.