The power of the Lord is so great that we can feel the Holy Spirit working in our hearts at all times, to will and to do for His good pleasure. His mercies are new every morning!
I personally believe the reason many do not feel the power of His Spirit is because He is so great, so transcendent and merciful because we are so weak, frail and carnal. Yet in His powerful His will will be accomplished. Our acquiescence allows us to enjoy that.