Daniel fasted for 3 weeks to understand what was revealed to him. On the 24th day of the 1st month he was by the river Hiddekel (Tigris) and an angel came to reveal to him the understanding; The angel tells Daniel 4 Persian kings; Michael will stand for Israel during a time of great trouble; Daniel was told to obscure the matters and seal the book until the time of the End; Daniel was told he would rest then arise for his time at the End of Days.