Warm inkstone needs soup to avoid frost and cold.
A cave collapsed, burying all the warmth. But with his fingertips pressed against the rock wall, he could still feel the residual warmth hidden in the width of the narrowest door, reserved only for him.
The mountain road ahead will be long, with caves as prisoners and rocks as tombs. No one will ever warm an inkstone for him.
Purpose: The most silent protection is to devote everything to leaving the only path in the world for you.