"And verily We have beautified the world's heaven with lamps, and We have made them missiles for the devils, and for them We have prepared the doom of flame." (67:5) Surah Al-Mulk.
As explained by Pickthall in his brief commentary, in this Verse the allusion is to soothsayers and astrologers (those who claim to predict future) who saw the source of good and evil in the stars.
"missiles for the devils" is most likely a reference to the punishment of soothsayers and astrologers for their disbelief.
Believing in something such as astrology automatically renders one's faith in Allah Almighty as weak or none at all. As Allah has stated in this Verse, stars are His creation with which He has beautified the heaven. What good or harm an a star or stars do to anyone when Sovereignty and Power belongs wholly to Allah only?
The Verse that follows 67:5 states that those who disbelieve will be doomed in Hell.
"And for those who disbelieve in their Lord there is the doom of hell, a hapless journey's end!" (67:6) Surah Al-Mulk.
Again, most likely, it's the soothsayers and astrologers who are referred to as disbelievers in V.67:6.
Verses 67:5-6 together can certainly be taken as involvement in astrology being totally Haram. It would also include all similar acts like readings of tarot cards, crystal ball, palmistry etc. All these practices are complete nonsense with NO logical bearing on peoples' lives and one-hundred percent HARAM. It gets still worse when soothsayers, astrologers and fortune tellers make this Haram act a source of earning money by fooling their clients. They know nothing about the future. They have only learned the trick of constructing loose and general comments .. like barnum statements and their stupid clients think they're telling the truth. Both have a weak iman or no iman at all which is the cause why they participate in this Haram activity.
Let us now read verses 15 and 16 of Surah Al-Hijr.
"And verily in the heaven We have set mansions of the stars, and We have beautified it for beholders. And We have guarded it from every outcast devil, Save him who steals the hearing, and them does a clear flame pursue." 15:16-18 Surah Al-Hijr.
The reference here is also to those Haram practices where the Noble Quran condemns practices like fortune telling, astrology etc. One of the most frequent activities associated with the jinn, is fortune telling. Before the advent of the Prophet (pbuh), fortune-tellers and soothsayers were widespread. These people would use their associates from the jinn to find out about the future. The jinn would go to the lowest heaven and listen to the angels conversing amongst themselves about events of the future which the angels would know from Allah, because Allah orders the angels to carry out His commandments. The jinn would then inform the fortune-tellers. This is the accepted explanation of this Verse. Then, further explaining the same Verse, upon the Prophet’s arrival the heavens were guarded intensely by the angels, and any jinn that tried to listen was attacked by "clear flame," most probably referring to meteors / shooting stars. It's very obvious from these Verses that such activities are Haram.
The practice was very similar to the custom of 'seance' where the medium claims to communicate with the spirit. According to it, the fortune tellers & soothsayers would try to communicate with the jinn.
Don't ever be dumb enough to get impressed by such folks if you sometimes hear them say something that might sound right to you. That is only a guesswork. If they hit the jackpot for a change, it's by sheer blind fluke.
NONE except Allah Almighy knows the unseen. Period.
Beware of liars like these in the pictures. Keep away from them and never believe a word of what they say:
This evil and kafir woman indulges in tarot card reading. This is how their Haram work looks.
The kufari of astrologer taking the people for a ride by talking utter rubbish. Beware of these Haram scoundrels. Keep far away from them.