Flexible ☀️ bright
In The Buddha's Ancient Discourses (Sutta Nipāta)
Verses on the cultivation of boundless loving-kindness for all beings, without exception. One should develop a protective, selfless love like a mother for her child. Maintained constantly, this "divine abiding" purifies the mind of ill-will and, combined with wisdom, leads to ultimate liberation.
In Numerical Discourses (Aṅguttara Nikāya)
The Buddha contrasts the misdirected and well-directed mind, and explains the importance of directing the mind.
The Buddha uses the gradual purification of gold as a metaphor for mental cultivation through meditation. Just as a goldsmith removes coarse, medium, and subtle impurities until the gold is workable and radiant, a meditator abandons defilements in stages. This gradual refinement leads to deep collectedness of mind, forming the foundation for supernormal abilities and, ultimately, liberation.