Ancient ancestry testing uncovers your ancestral origins, taking you back to the very beginning of your ancestral lineage. It is not like traditional genealogy and does not provide information on tracing present day relatives. Rather, ancient ancestry goes back tens of thousands of years to your ancestral roots.
By identifying DNA markers using mitochondrial DNA testing, it is possible to discover where and when your ancient ancestors originated, and retrace their genetic footprints across the globe over thousands of years.
Note that mitochondrial DNA does not provide information about your father's family nor any of the man who married into your motherline. Mitochondrial DNA is carried by both women and men but is only passed down by women.