God presented Himself to Israelites in the wilderness in Exodus as Yahweh Rapha (meaning "the Lord who heals"). The promise of healing is in placing faith on the crucifixion of Christ (Isaiah 53:5), the fulfilment is in part-taking in the act of remembrance of the promise, that is, Lord's table.

Dreams are a natural phenomena for humans, also a mystery and wonder. Dreams & experiences aren't mere stories, if we delve deep into the spiritual world, dreams are a portal.

If in the physical world blood is so relevant, how much more is The Blood relevant in the spiritual where the blood could even speak to the heavens?

Yes curses do exist, but the blood of Jesus has been granted to us for redemption from all the curses and we receive deliverance from every curse by putting faith in Jesus' resurrection.