Medulla: The term medulla is also denoted as medulla oblongata and is considered as one of the main parts of the hindbrain which is responsible for carrying out functions that are considered as necessary for survival including motor activity, wakefulness, respiratory rhythm, and sleep.
Any damage to Medulla oblongata can lead an individual to face cease in breathing and heartbeat that can even cause death.
In the question above, the given statement represents the medulla.
Patmos John The Seven Signs of God The Seven Signs of God preserve the book or scroll seen with an apocalyptic vision. Document seals are enabled
Only God knows the secret information in the seven seals until the sheep / lion can open the book / book, see things and gain knowledge.
When he opened the third seal, I said to the third beast, Come and see. I look up and raise a black horse; And the person sitting on it has a pair of balances in his hand.