The answer
We must differentiate first of all between a person who is terminally ill, and a person with brain death. If the person is terminally ill, we cannot terminate his life, for it is not our capacity and it is not our right. This life is God’s, and so, we must hope for a cure or a miracle. Brain death, however, is a commercial lie for the purpose of making money, for if a person is brain dead, it is impossible for them to come back to life. The heart is only working mechanically, but the brain is dead. Therefore, we do not consider it euthanasia in this case, but simply surrendering to the will of God, for this person is dead already.
H.G. Bishop Moussa