Snow constantly falls around him. Impervious to the freezing cold, the man is gripped by the searing memory of a winter he had spent together with his little sister.
which they sting and steal its 
warmth little by little.
حيث تلسعه وتسرق منه الدفء تدريجياً
a cui, dopo averlo punto, 
rubano piano piano il calore.