This has always been very frustrating for me too. Blizzard dumps lore on the Night Elves and Trolls and it seems like most of the other races have lots of lore as well.

We wandered the lands, never taking more than needed and always trying to remain in harmony with what was there. Our ancestors learned of magic from the Earthmother. She taught us how to talk to the ancestors and how to be one with the wild places around us.

We loved, we hunted, we learned from the land, we lived. Nothing else matters. We do not need to know where our ancestors were when the Elves blew up the world. We don't need to know who exactly the Earthmother is in the name of the other races. We don't need to paint a canvas that has broad strokes in with a fine detail brush.

Cairne is gone and we have lost a just leader. But we have not lost his wisdom. He will answer the call, just as any revered ancestor does when called. Unlike many of the others, we do not lose the wisest of us when they die, we merely have to know how to call them.

We are Tauren, we live in the present, revere and learn from our ancestors in the past, and look forward to a future in which our children's children can call on us for wisdom.