They are the innocent servants of Allah, who always obey His commands, because they don t have the power to disobey Him. Unlike mankind, they won t be judged on the Day of Judgement. Angels never get tired, therefore they are always at work. Their duty is to praise Allah and help mankind in carrying out the decisions they make throughout their lives. We can not see the angels, unless they take a human form.
Angels can take any form, which is suitable for their job.
When ever a person prays to Allah, thinks or talks about Allah, the angels gather round and join in. Their presence helps to build up an atmosphere of worship. Who protects the faithful and guards places of worship. Who is responsible for ending our lives. Who will blow the trumpet at the time at the end of the world and on the Day of Judgement.