Buddha may not provide the help in the way you expect

Venerable Ru Jun provided this metaphor in his video discourse
(from the 3:11min to the 3:53min)

My summary:
Like a child having tooth decay but still asking for sweet, the parent will bring them to doctor instead.
So when we supplicating for help from Buddha, the help may come in a different form from what we are expecting for. However, this help will definitely be what we need.