The Hive Queen teaches us that aiúas are called from the Outside to fill a form that is appropriate to their abilities. A small and lowly aiúa would form a subatomic particle. A greater, but still mundane one would fill a dust mite, and so on through cells, organs, and eventually a strong one would fill a human. A very powerful one would fill a Hive Queen. This is because an aiúa has a limited capacity for willing philotes to organize, or something to that effect.
We also learn that Jane was an aiúa called from the outside, just like a Hive Queen, to fill the program making up the Fantasy Game and perhaps a slightly larger computer network. Yet we see that she is capable of ordering far more than that later, practically ruling the entire ansible network of the Hundred Worlds and even transporting spaceships to the Outside and back again just by sheer will. Her aiúa could easily overwhelm the network of Father and Mother trees if she wasn't careful, and the visionary Samoan (name?) compared her light to that of a powerful god.
If she was meant only to fill a relatively small program when called from the Outside, why was she so big? Or is there evidence that aiúas can grow so drastically that they can become like a god?