attn @mawr :

"when a man is born, he is soft and pliable. when he dies, he is strong and hard. when a tree grows, it is soft and pliable. but when it is dry and hard, it dies. hardness and strength are Death's companions. flexibility and softness are the embodiment of life. that which has become hard will not triumph."
--"Stalker" (Tarkovsky, 1979)

(tl;dr, soff = gud)