Help! Mesh and surface separated and I dont know how to reverse it.

[chkau]

Somehow my mesh separated sort of from my surface. I was trying to do something with the bevel tool and must have done something else, except I can't find what it was or how to reverse it.

As you can see, the vertices and the surface are no longer aligned. How do I get them back together again?

[artfully3d]

It looks like you have pressed the "2" key, which will preview the smooth preview version of your mesh along with the original version of the mesh.

Pressing 1 with your object selected will display only the original mesh.
Pressing 2 will show the original as well as the smooth preview.
Pressing 3 will show only the smooth preview.

[damaggio]

You didn’t merge the vertices in that area.Select them all and merge.