Blessings and Curses

What exactly is a blessing? Or a curse? Are these just religious-sounding synonyms for good things or bad things? What does it mean when God blesses or curses? Do the blessings and curses of human beings actually do anything? Is this some kind of Christian magic? Join Fr. Stephen De Young and Fr. Andrew Stephen Damick as they look at how blessings and curses work in the Bible.