The definition of persist, is to continue steadfastly or firmly in some state, purpose, course of action, or the like, escpecially in spite of opposition.
How does persistence relate to your training?
How many times have you set a goal, and then set it aside because you did not succeed in the allotted time frame?
How many times have you gone back, over and over again, to continue pressing forward even on the hardest training goal you've ever assigned to yourself?
Depending on which question you answer, maybe it's even been both. How does persistence relate to the actions of your life? Do you give up and walk away, or do you press forward until all the possible options have been exhausted?
Hopefully you press forward, both in your training and in your daily life and all the options it offers you. Although persistence does not directly equal success, it's an important factor that accompanies it.