In the Bible, blessings and curses are not 'how-to' instructions. Instead, blessings and curses create a set of values, an ethos that shapes how people are to understand God, themselves, and the world.
It all sounds so... demanding. Sell your possessions and give to the poor. "Be dressed for action" (NRSV). Imagine yourselves as slaves who remain ready for their master's return -- not knowing when it might come.