Lineage and history

The idea of ancestor worship and tracing back our lineage into history, has been an integral part of Asian religions and traditions. As I listened to the reading of this morning, about the genealogy of Jesus, it struck me that God too was concerned with 'rootedness' at least when associated with human beings. A reflective look into the past will help us realise that we are part of a history greater than ourselves. Why they are we part of it? If great things have been achieved, carried out, lived out, prior to my arrival, why am I on the scene? What's our significance here and now? Perhaps to ensure that tomorrow's history will be greater than today's or at least as great as today!