Read Luke 8:7,14
"The seed that fell among thorns stands for those who hear, but as they go on their way they are choked by life’s worries, riches and pleasures, and they do not mature"
This third soil type was good if it was not for the fact that the growing plant is surrounded by thorns which choke out its life and sustenance. This happens when the Lord is crowded out by other things in life and we cease to seek God and His Kingdom above everything else. Some of these things are not necessarily bad, they are just given the wrong priority. Having ceased to live by the right priorities, we begin to live by pressure and living by pressure leads us to seek reprieve in pleasure. Before we know it compromise enters our life and loving God, serving Him and others fade in the background.
"Lord, forgive me from crowding you our of my life. I choose today to re-commit myself to seeking you and your kingdom first".