The Surrounding Light Is The Glue That “Sticks” Us Together
What is the Light that Reforms? In what way does it reform us and how? Imagine the common soul as a circle consisting of broken pieces that are unconnected. We have to restore this connection in order to feel eternal life within the common soul.
Imagine that a sculptor has made a statue of a person and then broke it into pieces. Instead of a whole statue, there is now a pile of broken pieces. These pieces are living souls that desire to assemble back together into a whole statue, but they just can't manage to "stick" to each other. When they attempt to unite, they discover giant forces of repulsion among them.
They are trying to come closer to each other and to recreate the statue of a person who is similar to the Creator, but they aren't able to do it. And that's because they don't have the glue that will make them stick together.
After numerous attempts to come closer and stick together, the parts become convinced that they are unable to connect together on their own, yet only unity will save them. They then realize that only the Upper Force, the force that created the statue in the first place, and the force that deliberately broke it, will be able to glue these parts back together into a single whole.
However, it will do so only when the parts request it. This request is called asking for the Light that Reforms.
If we desire to unite and ask for help in doing this, then we are asking the Creator to be the force that will unite us like glue. This is how we return to the initial form of the statue: the common soul of Adam HaRishon.