timetravel and fate.
Badmuts,
Each major decision that we make in life can set new parameters on our unfolding path. We have free choice, we think, but it may not always be so as situations and conditions force us to make decisions we would not normally make under other circumstances. It really matters not because we come here to experience everything possible. From the very best of things, to the very worst of things, it matters not for that is why we are here to gather experience and grow.
Fate could just be another name for our chosen path. Sometimes, that word makes it seem like we do not have a choice. Free Will is more powerful than Fate as fate could simply be the prevailing wind and our Free Will the actual course that is followed.