“I firmly believe that the moment our hearts are emptied of selfishness and ambition and self-seeking and everything that is contrary to God's law, the Holy Spirit will come and fill every corner of our hearts; but if we are full of pride and conceit, ambition and self-seeking, pleasure and the world, there is no room for the Spirit of God. I also believe that many a man is praying to God to fill him, when he is full already with something else. Before we pray that God would fill us, I believe we ought to pray that He would empty us. There must be an emptying before there can be a filling; and when the heart is turned upside down, and everything that is contrary to God is turned out, then the Spirit will come...”
― D.L. Moody
That last part especially.