Why is it that some people have more of Christ than others? Is it because Christ cannot get in? I think the more empty of self we are, the more he can fill us. The more we yearn for him, the more we long for him the more he is ready to fill us.
Like the Psamists:
" O God you are my God, for you I long!
   For you my body yearns; for you my soul thirsts,
Like a land partched, lifeless, and without water
   So I look to you in the sanctuary to see your power and glory.....' Ps. 63 :1-3
What do you long for and what is your heart's desire"
"As the deer longs for streams of water, so my soul longs for you O God.
My being thirsts for God, the living God.
     When can I go and see the face of God?"... Ps. 42: 1-3
It's grace to yearn and long for God just as He so love the world (you/me/us) that He send His only Son, Jesus, into the world that if we believe in Him we will not perish but will have eternal life.
Jesus came out of love into the world not to condemn it  but that the world might be saved through Him. He is therefore willing to fill us in the degree we yearn for Him. If you have somehow lost the zeal to yearn for him, ask for the grace to return to your first love, for He is waiting for your coming back home.