Intention is the measure for rendering actions true, so that,
where intention is sound, action is sound,
and where it is corrupt, then action is corrupt
The Way is basically perfect. It doesn't require perfecting. The Way has no form or sound. It's subtle and hard to perceive. It's like when you drink water: you know how hot or cold it is, but you can't tell others.
Buddha was speaking in a village square one day, when one of the inhabitants started to abuse him. Buddha paused and said to the man, "If you offer me a piece of paper and I refuse to accept it, what happens to the paper?" "Why, it stays with me, of course," the villager replied. Buddha smiled gently, "And that is exactly what I am doing with your abuse," he said. "I am not accepting it, therefore it stays with you."
In the intricate paths of life when difficulties and hardships confront a man, and the darkness of difficulty and suffering becomes long, it is patience only that acts like a light for a Muslim, that keeps him safe from wandering here and there, and saves him from the muddy marsh of disappointment, desperation and frustration.
If the first inward thought is not warded off, it will generate a desire, then the desire will generate a wish, and the wish will generate an intention, and the intention will generate the action, and the action will result in ruin and divine wrath. So evil must be cut off at its root, which is when it is simply a thought that crosses the mind, from which all the other things follow on.