The idea is to be increasingly sensitive, appropriate in the moment, so that each moment of practice feels perfect, alluring, desirable - and then to be as wholehearted as possible. The more yoga you do, the easier this will be, and the better you'll get at doing it. The ability to immerse yourself in your conscious experience of the poses and meditations, to be more and more fully present in the Now, is what will cause this awareness to infiltrate naturally into the rest of your life. This, of course, is what it's all about. Your breathing is the key.
Breathing brings the poses to life.
It's what animates the stretches and gives yoga its fluidity and flow. The idea, the training, is to make your awareness as continuous as the breath. You do this by staying with the breath continuously, breathing consciously. This flowing awareness of unbroken continuity will bring an integrated and increasingly meaningful sense to your practice. What makes asana practice especially interesting, however, is the fact that you are working with an energy field - your energy field.