SN 56.20

Tathasutta

“Cattārimāni, bhikkhave, tathāni avitathāni anaññathāni. Katamāni cattāri? ‘Idaṁ dukkhan’ti, bhikkhave, tathametaṁ avitathametaṁ anaññathametaṁ; ‘ayaṁ dukkhasamudayo’ti tathametaṁ avitathametaṁ anaññathametaṁ; ‘ayaṁ dukkhanirodho’ti tathametaṁ avitathametaṁ anaññathametaṁ; ‘ayaṁ dukkhanirodhagāminī paṭipadā’ti tathametaṁ avitathametaṁ anaññathametaṁ— imāni kho, bhikkhave, cattāri tathāni avitathāni anaññathāni.

Real

“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.

Tasmātiha, bhikkhave, ‘idaṁ dukkhan’ti yogo karaṇīyo …pe… ‘ayaṁ dukkhanirodhagāminī paṭipadā’ti yogo karaṇīyo”ti.

That’s why you should practice meditation …”