What are some idioms that describe "discarding distracting thoughts and perceiving the subtle"?

Sī xīn zá niàn (私心杂念)：

释义：All sorts of thoughts that are intended for personal benefit.

Conjugation: lighting up the flame of struggle on the sunny slopes, sweeping away selfish thoughts and transforming the bourgeois worldview.

Míng xīn jiàn xìng (明心见性)：

Definition：It refers to abandoning all mundane thoughts and realizing one's nature that has been lost due to distractions, and at the same time, it also refers to expressing one's heart in a frank and sincere manner.

Sentence: Nembutsu can also be a clear mind.

Fáng yì rú chéng (防意如城)：

释义：It refers to strictly curbing one's selfish thoughts, like defending a city against the enemy.

Conjugation: Fu Zheng Gong had 'guarding the mouth like a bottle and defending the intention to guard the city.

4. fáng xīn shè xíng (防心摄行)：

释义：It means to prevent distracting thoughts and pay attention to words and deeds.

Sentence: All Buddhist disciples shave their whiskers and hair, leave their homes, live in harmony with each other, cultivate their minds and practice purity, beg for their own money, and prevent their minds and take care of their behavior.

5. cǐ zhōng sān mèi (此中三昧)：

释义：It is the method of cultivation of the Buddha's disciples to keep the mind calm by keeping away distracting thoughts, which is an analogy of the subtleties here.

Contextualization: It is good that Jiu Gong has already obtained the samadhi in this, to see that he is effortless, why not teach him a little roughly.

6. xīn píng qì dìng (心平气定)：

释义：The heart is calm and free of distractions.

Conjugation: The class can know those who have a calm mind, who are not dazzled by fame in high places and not frightened by profit in low places