What does it mean if the numbers 789 are glowing on a ouija board?

It is believed that the combination of numbers 7, 8, and 9 is known as Angel numbers.

So, if those numbers are glowing on a Ouija board, that is a good thing - it means that you are protected by angels and that they are leading you through your spiritual path in life. Number 7 is all about spiritual awakening and determination, number 8 positive feelings and inner-wisdom, and number 9 strength, leadership, etc.