All She Had to Live On

Jim Elliot is quoted as saying “He is no fool, who gives what he cannot keep, to gain what he cannot lose.” Jesus response to the widow who gave 2 copper coins is very revealing; he does not say she gave all her money, he says she gave all she had to live on. Luke 12:15 says “One’s life does not consist in the abundance of his possessions”. If our life isn’t in our possessions, what is Jesus referring to when he says this widow woman gave all she had to live on?