(From my book of Aphorisms- 'Thoughts To Make You Think' By Helen Leigh - http://thoughtstomakeyouthink.doomby.com - Chapter One - Personal Development)
Your ultimate goal should be to only see what you want out of life.The highest form of living is living in appreciation.
So whatever is given to you in your life, perhaps an item that you have wanted for months but then forget about it the next morning? Dis-Acknowledge it. Then you are not living in appreciation and this split second reality that holds no value for you, will not serve you, it will depress you deeply and make you feel empty.
The goal is to feel more; follow your feelings.