Going back to Elder Scott's book, Finding, Peace, Happiness and Joy, he states:
"Why is humility essential to the acquiring of spiritual knowledge? To be humble is to be teachable. Humility permits you to be tutored by the Holy Spirit and to be taught from sources inspired by the Lord, such as the scriptures, the voice of His servants, or inspired parents. The seeds of personal understanding and growth germinate and flourish in the fertile soil of humility. When cultivated through the exercise of faith, pruned by repentance, and fortified by obedience and good works, such seed produce the cherished fruit of spirituality. Divine guidance and power then result -- guidance to know the will of the Lord, and power to provide the capability to accomplish that inspired will. Such power comes from God after we have done "all we can do."
A proud individual cannot know the things of the spirit. Paul taught this truth, saying:
"For what man knoweth the things of a man, save the spirit of man which is in him? even so the things of God knoweth no man, but the Spirit of God... But the natural man receiveth not the things of the Spirit of God: for they are foolishness not him: neither can he know them, because they are spiritually discerned."
Therefore, spiritual guidance must be cultivated in the environment of humility. Pride, overconfidence, selfishness, seeking for position or the honors of men, stifle spiritual direction."
(Elder Richard G. Scott, Finding Peace, Happiness, and Joy, pg 65-66)
**We can all be humble on our own to a certain degree, but ultimately we must ask Heavenly Father to teach us to be humble and show us where we aren't humble. Unless we ask we will not really understand what true humility is.