The fear of the Lord is the beginning of Wisdom.
As fear progresses from fear of punishment (as in a child) to awe, this is the beginning of Wisdom.
A morbid fear of punishment is servile fear. It does not lead to wisdom.
A child, on the other hand, who fears his parents loves his parents and desires to please them. He also knows that disobedient acts will be punished, so he likewise fears his parents. This is the beginning of righteous fear.
As a child grows, hopefully this fear toward his parents will mature into a healthy respect and love for his parents.
LIkewise our fear of God should grow into love for God.
Fear has also been described as awe in the presence of God. This is truly the beginning of Wisdom. Once we experience this fear, this awe, then we can begin to experience God in prayer in a way that human words cannot describe.
Hope this helps,
Lovingly in Christ,
Elizabeth