Stubbornness ☁️ dark
In As It Was Said (Itivuttaka)
The Buddha describes the qualities of true disciples, and those who do not grow in the Dhamma.
In Middle Length Discourses (Majjhima Nikāya)
The Buddha illustrates that his true inheritance is the Dhamma, not material possessions. Venerable Sāriputta clarifies the practice of seclusion by listing numerous harmful qualities to abandon and the Middle Way that leads to abandoning of them, to clear vision, wisdom, tranquility, to full awakening.
The Buddha uses the simile of a defiled cloth to explain how the mind can be similarly defiled by various impurities, and how it can be purified by abandoning them. And it is through this very practice that one arrives at unshakeable faith in the Buddha, the Dhamma, and the Saṅgha. The Buddha also addresses a brahmin in verses who believes in purification by bathing in river.
The Buddha distinguishes peaceful abidings in the here and now from the way of effacement leading upwards to complete quenching. Effacement is shown as the gradual chipping away of defilements through restraint, cultivation of the noble eightfold path, and diligent training, culminating in the complete freedom of Nibbāna.