I've been reading this very good new book "The Infinity Puzzle" by Frank Close and it mentioned a lot about the Higgs boson eating the Goldstone Boson to have mass. I already checked out wikipedia but can't get an intuitive feel of it. Can anyone explain in a brief mathematical sense why the goldstone boson which has no mass has to be eaten by the higgs boson to make it massive... It would have been more intuitive if the goldstone boson is massive.. and the higgs boson eating it would turn it massive.. but the goldstone is massless. Thanks.