They collect and throw rocks at it.
The important thing about mina is that there are three demons which Muslims believe turned into pillars and during umrah or hajj people throw pebbles at the pillars. This is important to Muslims because the demons are being treated badly.
The Muslims leave the field of Arafat at sunset on 9th Zhajja and come to Muzdalfa. They stay there and collect 49 smll pebbles to throw at the Devils (three Jamrats).
they poo up the stones
This is the place where Muslims rest.
it is a ritual hajj worship to symbolize stoning the devil following what prophet Abraham made when the Devil appeared to him and persuaded him not to sacrifice his son as ordered by God.
To Makkah ; exactly , to Arafat then Mosdalifah then Mina .
Muslims go to muzdalifah to collect pebbles and to spend that night in worship and IF THE MUSLIMS HAD ALREADY GOT STONES THEY COULD COLLECT EXTRA FOR ANY LOSSES On the 9th of Zill Hajj the Muslims stay in the field of Rafaat, and pray to Almighty Allah karim. Just at sunset they leave Arafat and come to Muzdalfa. They offer their Maghrib (Evening) and Isha Prayers together. Pray to Almighty Allah most part of the night. They may also sleep for sometime. They collect small pebbles for stoning the Satan (jamarats). They offer their Morning prayer and just at sunrise (10th Zill Hajj) leave Muzdalfa for Mina, stoning the Bid Jamra, offering sacrifice, twaf-i-Ziarat and coming out of Ahraam. They come back to Mina after Tawaf-i-Ziarat.
Muslims stone symbols of the Devil at Mina (a town close to Makkah or Mecca) in Saudi Arabia during Hajj (or pilgrimage)
Most of the rituals the Muslims perform during Hajj are in the memory of Hazrat Abraham (Ibraheem AS). In his dream, Hazrat Ibraheem saw that he was sacrificing his son Hazrat Ismaiel (AS) who was a young boy of about eleven years of age. He told his son about his dream. The young boy replied that he should do according to the command of Allah Karim. Hazrat Abraham (AS) took Hazrat Ismaieel (AS) to the valley of Mina to sacrifice him. At three places Satan came to Hazrat Abraham (AS) to persuade him not to sacrifice his son. Each time Hazrat Abraham (AS) threw stones at him to ward him off. The Muslims throw stones at the symbols of Satan at three places. It is an essential ritual of Hajj.
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Whilst on Hajj (Pilgrimage-The Religious Journey A Muslim must take) one of the things Muslims do is collect stones and throw them at thee pillars. These three pillars represent the devil so the throwing of stones symbolises not giving in to evil and resisting temptation. In other words, telling the devil they believe in God and not him.
throw it at the water, look at it. collect rocks,