"The Teacher is here and is calling for YOU."
Mary hears that Jesus is calling for her specifically.
Everyone who comes to belief has that exact, specific, individual call. Yes, Jesus comes to save "The World", but He does so one at a time. He does it specifically and personally. If N is the kingdom, it grows by N + 1.
Perhaps YOU are the +1 today. If not, subscribe to the Youtube channel so you can be the one tomorrow.
https://youtu.be/S3tkxIFME8E