This is the current challenge. Qi flows best without resistance, Dhamma practice is optimal when all resistance is minimized as well. The state of no resistance is being one with the Dao, balanced and in harmony, most of us experience this briefly from time to time, some of us are so intrigued and delighted with it that we develop a practice to nurture the potential for that to return or persist. Here is where not trying is essential, too much striving and it literally is chased away, too little and chances are we cannot even recognize it when it arrives. Through out the Buddha Dhamma we see references to this, my favorite may be the Buddha's analogy of playing a stringed instrument - you don't want the strings too tight or too loose, they must be tuned just right for the music to resonate.