Complex sentence: We've gathered here tonight around the fire, as people of all lands have gathered for thousands and thousands of years before us, to share the light and to share a story--an amazing story, as old as time itself, but still being written.
Split into simpler sentences: We've gathered here tonight, around the fire, as people of all lands have gathered for thousands and thousands of years before us; to share the light and to share a story. An amazing story, as old as time itself but still being written.