Why do the travelers stop on the belt of Orion in A Wrinkle in Time?

In "A Wrinkle in Time," the travelers stop on the Belt of Orion to meet with the three celestial beings known as Mrs. Whatsit, Mrs. Which, and Mrs. Who. This location serves as a pivotal point in their journey, allowing the characters to receive guidance and support for their mission to rescue Meg’s father. The Belt of Orion also symbolizes the intersection of different dimensions and the vastness of the universe, highlighting the importance of their quest against the dark force threatening their world.