You asked and I answered to the best of my ability above.  I believe some supernatural event will occur, possibly an illumination of the soul, three days of darkness, or some sign in the sky.  The miracle of the sun on October 13, 1917 has some unknown meaning for us today.  
In regards to Satan apparently you have no belief in the Book of Revelation. 
The Woman, clothed in the sun will crush the head of the serpent.