What do Freemasons do?

by Michael Klosinski
(Mishawaka, Indiana, USA)

My Grandfather was a Mason. I asked my father what he did. My dad told me that he never talked about it.
I have been researching the Freemasons and have noticed it around me everywhere. I can see they like the number 7 for some reason. I have a friend who is a Mason but will not talk or say anything when I ask him something. I understand it is a brotherhood but just by doing research on it, it goes back very far.
I noticed that some of these things go back and relate to the illuminati, Bush's skull and bones, etc. etc.
How hard would it be to become a Mason if my grandfather was a Mason? But, I do not have much history of my grandfather because he passed on before I got to know him. His name was Edward Klosinski, from Michigan City, Indiana.