It seems to me that what ever you focus your attention on is what you mind thinks is important. If you dwell on problems, sad memories, bad health, these things expand and became the "Most Important Things" in your minds eye. However if you focus is on hope, faith, possibly even God, and the kindness of others, who are willing to drop what their doing in their lives at anytime just to help you. Your mind focuses on these things and they are what is important that that is what grows and expands in your life. Every thought is like a gold fish. The more you feed it the bigger the body of water that you reserve for it in your life the more space to has to grow until its past the limits of what a goldfish would normaly be.