That is what "Krishna consciousness" is all about at the stage that you are at. You should not try to meditate on anything higher than that until you can at least have faith that by shouting out "Hare Krishna!" and begging Krishna, with tears in the eyes, to please engage you in His service and to not let you remain a servant of lust, anger, and material illusion any longer, Krishna's holy names will act to clear away the obstacles in your life. If you make a regular practice of this and continue to chant after sincerely praying in this way as much as possible, you will get strength.
January 9, 2002, Letter