Our brother brought us a message about the Precious Blood of Jesus.  It is precious on a natural level in that without blood, there is no life.  The blood of Jesus can purchase what nothing else can purchase, One soul is worth more than the entire economic worth of the entire world (think if the GDP of every country in the world).  Blood was first spoken about in the Bible in a major way in Exodus 12 where God asked the Children of Israel to slaughter a lamb without blemish and apply it to the door posts and lintels of their homes and He will passover.  Our brohter talked about how we need to receive this Blood by faith.  The book of Hebrews has much to say on this topic.