Games : I can't get in the door at the shrine of winter dark souls 2

I have killed all the four main bosses and lit all the primal bonfires and used them. I have over 2 million soul memory and 250,000+ in hand. I however only have two of the great souls on hand as I used the others to trade for weapons but it still says closed. Do I need all heat souls in hand? What am I missing? Please help