Arminianism is a type of Christian belief named after a Dutch theologian called Jacobus Arminius. It focuses on the idea that God gives us free will and that we can choose either to accept or reject God's grace. It also emphasizes that God's grace is given to everyone and it is up to us to decide whether to accept or reject it. In other words, God gives us the freedom to decide our own destiny and doesn't decide it for us.