What is a whole-hearted commitment to God?

Here is a comment from a reader with my reply below: I now understand your point about supernatural experiences being available to people regardless of the state of their “heart”.  But, due to the problems involved with such experience with, what we might call, less mature individuals, you go to some length to outline concerns about this, and suggest remedies such as Humility, and developing the fruits of the spirit, and other ways to try to avoid using Gods power without having His purity....