Pressing her represents evil spirits and challenges. Bow to her and you can't hurt her. Courage can make challenges yield.
Buying a sword on the porch is just a psychological suggestion. Don't believe that.
You can check the history of the Eastern Zhou Dynasty. Before the Battle of Chengpu, Jin Wengong dreamed that the King of Chu was suppressing himself. Hu Yan interpreted the dream that the strong enemy "bowed to the knees" and the king of Chu lost in the war.
This dream should only be done once, and your mother should be afraid to repeat it because she doesn't know how to interpret it. Please rest assured her old man.
Of course, the above is from the perspective of pure dream interpretation, and sleeping posture will also affect these.