Yes this is a very useful technique to learn as it has a great deal of flexibilty.
The pricipal behind it is taht you can reference values on forms from query criteria.
Form name frmMyForm1
Form contains 2 fields
the query contains 2 fields you want to select on [MyAccountStart] and [MyAccountEnd}
in the query criteria for [MyAccountStart]
in the query criteria for [MyAccountEnd]
You can amend this example to meet your needs. the great flexibilty of this method is that you can use values from multiple forms if you want to.
Hope this helps