Every Muslim working towards the salvation and eternal joy of his own soul should reflect on the descriptions of 'Ibad al-Rahman - the worshippers of the Most Merciful - who have been mentioned in the Quran. In this way, he will get to know them, and then he will be able to work towards actualizing and implementing their habits in his own life.
This book describes these beautiful people while giving suggestions and examples on how you can become one of them.