“Until one is committed, there is a hesitancy, the chance to draw back. The moment one definitely commits oneself then Providence move too. All sorts of things occur to help one that would otherwise never have occured. Whatever you can do, or dream you can, begin it. Boldness has genius, power and magic in it.”
All beginnings and endings are difficult to assimilate. When we engage in a new activity, we might be excited with the idea and soon the emotion started to fade away, any activity we begin is a commitment for change, and in change there is always resistance, the idea is to maintain and trust the goal, to proceed with discipline.
Atha in Sanskrit means literally “now“, which can also . be interpret as the beginning of self study. In other words we must start learning, practicing, and integrating various aspects of yoga, this required time and lots of patience.
You need to be committed and focus, pit-point the moments when the energy starts to dissipate and your eagerness to engage into it diminishes, if you are able to observe what is happening, take a moment and remind yourself the benefits the practice will give you in a long run. Not only will aid you focused but you will gain strength, discipline, certainty trust and commitment.
Quote extract from The Path of the Yoga Sutras a practical guide to the core of yoga.