Some people, who were Masons, then went off and delved into the occult; however, that doesn't mean that FreeMasonry has anything whatsoever to do with occult.
Well... I'd sure love to be wrong about that. 'Cause many a patriot that I admire, was a Mason. Also, so was one of the finest men I ever worked for.
It wouldn't be the first time Christians were misinformed about something. But, with so many rituals secret, how could I find out for sure without actually joining myself? My Dad's Dad's Dad was a Mason (Potter Lodge Philadelphia) but he's long gone so I can't ask him.
BTW, when I was doing genealogy I contacted 2 organizations in Philadelphia: the Masons and the old Methodist church that my Dad's family belonged to. The Masons still had records of my greatgrandfather, even though it was over 100 years earlier, and their archivist prepared a complete report of all the info they had on him, his family, and the date and location of his funeral (with Masonic honors).
I never heard from the Methodist church.