A summary of the concepts held by the Ahl al-Sunnah.
Controlling one's thoughts and reflections.
First: Every person is a thinker, and every thinker is a doer.
Thoughts and reflections are the origin of all theoretical knowledge and voluntary action.
They produce perceptions.
Perceptions invite intentions.
Intentions necessitate the occurrence of an action.
The repetition of an action causes it to become entrenched and turn into a habit.
Thus, a person’s actions are in accordance with their thoughts and reflections.
If these are good, the action is good.
If these are evil, the action is evil.
Therefore, a person must control their thoughts and reflections so that their behavior is disciplined.
And they must direct themselves toward what pleases the Lord, glory be to Him.
Second:
Repelling evil thoughts is easier than repelling perceptions.
Repelling and addressing perceptions is easier than repelling intentions.
Thus, the matter becomes increasingly difficult the further one delves into the consequences of thoughts and reflections.
Until, once the matter becomes an entrenched habit,
It becomes very difficult for the person to abandon it.
This is not possible for them unless Allah grants them repentance and success from Him, glory be to Him.
Third:
A person may not be able to prevent thoughts from arising initially,
Because they strike them suddenly.
However, through the strength of faith and soundness of mind, they can filter these thoughts.
They accept the good ones, are pleased with them, and dwell upon them.
And they repel the ugly ones, detest them, and turn away from them.
As some of the Companions said to the Messenger of Allah, peace be upon him:
"We find within ourselves thoughts that one of us would consider too grave to speak of."
He, peace be upon him, said:
"Have you truly found that?"
They replied, "Yes."
He said, "That is clear faith."
Narrated by Muslim.
In another narration:
"Praise be to Allah, who reduced his plot to mere whispering."
Meaning the plot of the devil.
Narrated by Ahmad and Abu Dawud.
Thus, repelling the whispers of the devil and detesting them is clear faith.
Fourth:
The most beneficial remedy for preventing evil thoughts
Is for a person to always and forever occupy themselves with what concerns them and what benefits them in their afterlife and worldly life.
By doing so, they turn away from thinking about what does not concern them and what holds no benefit.
The Messenger of Allah, peace be upon him, spoke the truth when he said:
"Part of the perfection of a person's Islam is leaving what does not concern them."
Narrated by al-Tirmidhi and Ibn Majah, and authenticated by al-Albani.