He's exactly right; Biblically right.

444 is "the key of David". It was invented by David, who played the harp, and his playing was the only thing that soothed the soul of the tormented King Saul.

As we all know, double meanings exist.

God also tells us "the key of David" is a blessing from Him, where He "opens doors no man can shut and closes doors no man can open". See Isaiah 22:22, Revelation 3:7.

In the spiritual, it's God blessing your every step. In the physical, I can see it meaning opening "the door" of our heart to His Spirit and closing the door to [their] influence.