Those are upon whom bestowed the Blessings and the Mercy from their Lord, and those are the rightly guided.
Lord created mankind from a single soul and mingled sperm and ovum to test him as told in verse 76: 2. The mankind created in Paradise is deputed to earth to undergo the test with whatever he/she is provided as told in verses 5: 48 and 6: 165. It is told in verse 21: 35: “Every soul will taste death, and Lord will test you with evils and good as a testament, and unto Lord, you all will be returned”. It is asked through verses 29: 2-3: “Do mankind reckon that they will be left alone without being tested just because they say: ‘Indeed, we believed’? Surely, We have tested those before them, then indeed, Lord knows those who are Truthful and indeed, He knows those who are liars”.
Therefore, the believers who holdfast Safeguard Adhikr will have the confidence that they will not be affected by any calamity, disaster, diseases, and Hell. They are utilizing Adhikr as the Ticket to the Paradise, and are having the consciousness: “We are nothing and we have nothing. Everything belongs to Lord of the worlds”. The odd believer will help Lord by propagating His Message Adhikr to the entire worlds and thus Lord will help him back as told in verses 22: 40; 47: 7 and 61: 14. See explanation 2: 8 and 147-148 and 3: 185-186.