Ascended Masters No. 77= Repeated Angel numbers have urgent meanings and stronger influences over the upcoming events in our life. That said, this Angel number holds twice the spiritual energy of Angel No. 7, which is also known as the perfect number of God (Source).
No. 7 and its repetitions, point back to the creation of the world. God created the Heavens and the Earth in 7 days, and on the 7th day, he rested, which was Saturday or "Saturn's'" day.
In Christianity, it means completeness, perfection and the immense support of the Divine beings in our life. It's also a foreshadowing of a spiritual awakening in the near future, but I don't need to worry because the Divine forces are supportive of my decisions.
The Ascended Masters want to remind me that the higher powers have blessed me with divine wisdom, spiritual enlightenment and a powerful intuition. They mention that it is seldom that Agel No. 7 is revealed to people, and it's even rarer to encounter the 77 Angel number, so this is being shown with a sense of urgency from the Heavens to make me aware of a revelation before it happens.