I-800 Receipt

We received our Notice of Action in the mail today saying that our immigration paperwork was received by the USCIS and forwarded to the Hague Adoption Unit located at the National Benefits Center in Missouri.  What does all this mean?  We are one step closer to bringing Ady Mae home!  When  we receive our official I-800 approval (in the next few weeks), we move onto the National Visa Center part and then the Article 5 stage and then Travel Approval and then finally, I am off to China!