In the Phaedo, on the day of his death, Socrates tells his friends that true philosophers practise dying: they free the soul as far as possible from the body’s distractions in order to see truth. The idea runs through Platonism, Stoicism and Christian monasticism.
Practice of dying
Socrates’ teaching in the Phaedo that philosophy is the rehearsal for death, the separation of soul from body.
Also: melete thanatou