How or why do arahants not experience aging & death?

There are various verses in the Pali suttas that give the impression arahants not experience aging & death, as follows: > *Then, monks, being subject myself to aging... death... seeking the aging-less, deathless... unexcelled rest from the yoke, Unbinding, I > reached the aging-less... deathless... unexcelled rest from the yoke: > Unbinding. MN 26* _______________________________ > *A sage at peace is not born, does not age, does not die, is unagitated, and is free from longing. He has nothing whereby he would > be born. Not being born, will he age? Not aging, will he die? Not > dying, will he be agitated? Not being agitated, for what will he long? > It was in reference to this that it was said, 'He has been stilled > where the currents of construing do not flow. And when the currents of > construing do not flow, he is said to be a sage at peace.' MN 140* _____________________________________________ > *21. Heedfulness is the path to the Deathless. Heedlessness is the path to death. The heedful die not. The heedless are as if dead > already. Dhammapada* How or why do arahants not experience aging & death?