Lemonade is about Beyoncé reflecting on womanhood and the women in her family - partly the way men have treated them. Beyoncé has hinted at having been cheated on several times in her music, I am almost positive Jay has at some point. This was her letting loose and getting as much energy as she could from those frustrations. You can hear how angry she is at the men in her life. But you can also hear her learning from these incidents and not dwelling on them: she's growing from them. As cliched as it is, it's about her personal journey of making lemonade out of some of the lemons life has thrown at her, comparing those events of the women around her, and rising above.
It's kinda a beautiful album, I think.