this is going to be be a really quick example. But I'm sure you can use your intelligence to expand on it.
the form contains 2 fields
<input type=text name=field1>
<input type=text name=field2>
on the next page, where the form is submited to you wouls have something like this.
$message = "Field1: $field1
Field2: $field2";
mail ("your@email.address","Subject",$message);
That's all there is to it.