It is your idea that you have to do things that entangle you in the results of your efforts - the motive, the desire, the failure to achieve, the sense of frustration - all this holds you back. Simply look at whatever happens and know that you are beyond it.
What I hate is ignorance, smallness of imagination, the eye that sees no farther than its own lashes. All things are possible. Who you are is limited only by who you think you are.
Do not dwell in the past, do not dream of the future, concentrate the mind on the present moment.
You are a child of the universe no less than the trees and the stars; you have a right to be here.