One last moment of clarity is not uncommon in the dying. It's the final important gift to the family, God-given.
Both my parents had such a clear-eyed episode, and it feels incredible to the living. It's unmistakable.
The hospice people ( angels in the flesh) told us this happens often at the very end.
Dutch rode to heaven on a raging river of thankful prayers.
This was God's Gift to Nancy Reagan.