You should trust the children; they can stand more than we can. - P. L. Travers

Jane and Michael sat at the window watching for Mr. Banks to come home, and listening to the sound of the East Wind blowing through the naked branches of the cherry-trees in the Lane. The trees themselves, turning and bending in the half light, looked as though they had gone mad and were dancing their roots out of the ground. "There he is!" said Michael, pointing suddenly to a shape that banged heavily against the gate. Jane peered through the gathering darkness.
"That's not Daddy," she said. "It's somebody else."
Then the shape, tossed and bent under the wind, lifted the latch of the gate, and they could see that it belonged to a woman, who was holding her hat on with one hand and carrying a bag in the other. As they watched, Jane and Michael saw a curious thing happen. As soon as the shape was inside the gate the wind seemed to catch her up into the air and fling her at the house. It was as though it had flung her first at the gate, waited for her to open it, and then had lifted and thrown her, bag and all, at the front door. The watching children heard a terrific bang, and as she landed the whole house shook.
"How funny! I've never seen that happen before," said Michael.

Mary Poppins never told anybody anything. . . .

"There! Come down! What are you doing up there? Come down! We can't have the girl walking through the air. It's not natural!"

But Maia was going up and up.