Do I have Root in Myself?

Yesterday we studied the parable of the sower from Matthew 13 in Sunday school.  One phrase that stood out to me was in verses 20-21.

20 But he that received the seed into stony places, the same is he that heareth the word, and anon with joy receiveth it;
 21 Yet hath he not root in himself, but dureth for a while: for when tribulation or persecution ariseth because of the word, by and by he is offended.

To have root in myself is to provide the Lord fertile ground in my heart.  Are there parts that are hard within me?  Are the places I don't trust that the Lord can heal?

I love the song Broken by Kenneth Cope. The Lord love when we break up the soil of our heart.  When we gently plant the seed of his word into more and more areas of our soul.  That we might have joy in the growing and in the fruit his grace offers us.  Yet only I can break up the soil of my heart.  Only I can invite the Word in my soul.  The Lord will never violate the sacred boundary of the heart.  We are agents unto our selves.  Only we can do that sacred work.