Originally Posted by Acting Like Godot
From a subjective reality perspective, a group manifestation is about different aspects of the same consciousness cooperating towards achieving the same goal.
As an analogy, you could compare this, say, to the way that different cells & organs in the body work towards keeping the body functioning.
Another analogy could be Random Access Memory in a computer. The RAM is like consciousness.
The computer has a certain amount of RAM. Some RAM can be used for one process, some for another, and more for yet more processes.
But if all the RAM was used for one process or purpose (depending on the process), the process could be done more efficiently and quickly.
Group manifestation could be analogous to gathering up RAM (consciousness) to achieve a given purpose.