The Rebbe says an amazing thing – Happiness ultimately is feeling lucky – and first of all, let us feel lucky as a friend of mine, Dr. Stolyer says – it’s amazing that we’re not cockroaches… – there a lot more cockroaches than humans – and our DNA managed to be human!! then it’s amazing that we’re Jewish!!! we have an infinite part of God within us!!!! and if you have a connection to God… which is because of thousands of years of Jews sacrificing to do the Mitzvos- giving their lives to God, this manifested God within our reality – so we’re in the Messianic era!!!!!!!! if we can’t rejoice in such a joy, then maybe we deserve not to