Saṁyutta Nikāya — Discursos Conectados — 56.20 — Real

1“Mendicants, these four things are real, not unreal, not otherwise. What four? ‘This is suffering’ … ‘This is the origin of suffering’ … ‘This is the cessation of suffering’ … ‘This is the practice that leads to the cessation of suffering’ … These four things are real, not unreal, not otherwise.

2That’s why you should practice meditation …”