OLEDragDrop Question concerning Forms

Why do Forms have a OLEStartDrag event and a Me.OLEDrag? I can't OLE drag a Form and do a OLEDragOver on another Form even though the Form has a OLEDragOver event nor drop it on another Form even though there is an OLEDragDrop event

How or why do you use the Form_OLEStartDrag event

I know I can OLEDrag a picture from Form1 to Form2 and drop it on Form2 if I set up the OLEDragDrop on that Form. So why not a Form itself