how you are according to your salah

The five categories of people who pray:

1. The category of the oppressor to himself, the negligent one, one who is deficient in performing ablution for it, negligent with his appointed time periods, its boundaries and its pillars.
2. One who preserves it appointed time periods, its boundaries, its outward pillars and ablution for it, however he forsakes striving against his own self from whisperings and thinking to himself, and so is preocupied with whisperings and thoughts.
3. One who preserves its appointed time periods, its pillars as well as strives against himself in repelling whisperings and distracting thoughts that overcome him, he is busy in striving against his enemy in order to prevent him from stealing his prayer, he is in prayer as he is in Jihaad.
4. One whom when he stands for prayer perfect its rights, its pillars and its boundaries. His heart is occupied with preserving its boundaries and preventing anything of it being lost, rather all his attention is directed to performing it as it should be, in its most complete and perfect form, his heart is occupied with the prayer and worshiping his Lord  the Elevated, with it.
5. One who performs the prayer, like the previous person, but in addition to this, he has taken his heart and presented it to his Lord. He looks at his Lord with his heart, fully concerned with him, it is as if he sees and witnesses his Lord. All distracting thoughts and whisperings fade away and the veil between him and his Lord is removed. The difference between this person in his prayer and others, is greater and better that all what is between the heavens and earth, he is fully occupied and overjoyed with his Lord in his prayer.

The first category is punished, the second is held accountable, the third is perdoned, the fourth is regarded and the fifth is brought close to his Lord, because he gains a portion of what made the prayer a delight to him. For whoever is delighted with his prayer in the life of this world, will be delight  by being close to his Lord in the After life as well as being dclighted with his Lord in this life, and whoever is delighted with Allah, the Elevated, his soul will be torn apart from the life of this world in loss.

It is narrated that when a server stands for prayer, Allah, the Glorified says:

"Remove the veil"

And if the servant turns away , He says:

"Replace it"

 This " turning away" has been explained as the turning of the heart away from Allah the Mighty to other tha Him. So if he turns away, the veil is replaced between him and his Lord and Shaytaan enters and presents worldly affairs to him, he shows them to him in the image of a woman. But if he turns with is heart to Allah and does not turn away, Shaytaan would not be able to come between Allah and the heart, he only enters if the veil is replaced. If he returns to Allah the Elevated with his heart, the Shaytaan would scape, and if he turns away, the Shaytaan would return, such in his state with this enemy in prayer.

SOURCE: Al Waabil as Sayyib : Vol. 1 P. 138R of Shaykh ul Islaam Ibn Qayyim (Rahimahu Allah)