When Lord Buddha spoke about suffering, he wasn’t referring simply to superficial problems like illness and injury, but to the fact that the dissatisfied nature of the mind itself is suffering. No matter how much of something you get, it never satisfies your desire for better or more. This unceasing desire is suffering; its nature is emotional frustration.
– Lama Yeshe, Tibetan Buddhism.
Imagine this scene: a layman sits in front of his house, eating a fish from the pond behind the house, holding his son in his lap. The dog is eating the fishbones and the man kicks the dog. Not an extraordinary scene one would think, but ven. Shariputra commented:
“He eats his father’s flesh and kicks his mother away,
The enemy he killed he dandles on his lap,
The wife is gnawing at her husband’s bones,
Samsara can be such a farce.”
What had happened? The man’s father died and was reborn as a fish in the pool, the layman caught his father, the fish, killed it, and was now eating it. The layman’s mother was very attached to the house so she was reborn as the man’s dog. The man’s enemy had been killed for raping the man’s wife; and because the enemy was so attached to her, he was reborn as her son. While he ate his father’s meat, the dog – his mother – ate the fish bones, and so was beaten by her son. His own little son, his enemy, was sitting on his knee.
When we sit in a quiet forest when there’s no wind, the leaves are still. When the wind blows, the leaves flutter.
The mind is the same sort of thing as leaves. When it makes contact with an object, it vibrates in line with its nature. The less you know of the Dhamma, the more the mind vibrates. When it feels pleasure, it dies with the pleasure. When it feels pain, it dies with the pain. It keeps flowing on in this way.
– Ajahn Chah, Theravada, Thai Forest Tradition.