It's difficult to explain. The Door draws in on chaos and disorder. It searches for a mirror of our power source- fear, sorrow, and so on. I suppose if you were to compare it to one of the dogs you humans use, we gave the door a "scent" and it uses that to locate beings that cause, experience, or represent a similar "scent". It then draws them though its threshold.
And before you ask- I don't know exactly how the draw works. It doesn't drain any of our energies to use it. The entire process is self sufficient.
text.
And before you ask- I don't know exactly how the draw works. It doesn't drain any of our energies to use it. The entire process is self sufficient.