Self-making

Someday Hossein and I went around to Mashhad. After arriving Torghabeh, we went to the spring, which had cool and limpid water. Hossein took off his shirt and laid his waist under the waterfall and tried to tolerate water pressure and its coldness.
I asked him: “why did you do so?”?
“We should prepare ourselves to resist SAVAK tortures.”? He answered.