Meaning of Ayat.

17. And Al-Mutaqqun (the pious) will be far removed from it (hell);
18. He who spends his wealth for increase in self-purification;
19. And who has (in mind) no favour from anyone to be paid back;
20. Except to seek the Countenance of his Lord, the Most High;
21. He surely, will be pleased (when he will enter Paradise);