Just because we are not walking around in a constant state of burning does not mean we do not have the spirit with us. In fact, if we did burn constantly then the Lord would have no way to send his verification in those crucial times when we needed it.
I learned this truth by sad experience. Many years ago, I would often find myself at odds with one of my brothers. We would begin by discussing and end up arguing. Usually over things that now seem of little or no significance. Once, not long after I had married, I grew weary of always arguing with my brother and so in a moment of more zeal, than wisdom, I kneeled before the Lord and swore a solemn oath, covenanting that I would never again argue with my brother. O course on his next visit we began as usual and ended in a heated argument, where he stormed out of our apartment in anger. As he left I physically, and spiritually, perceived that the companionship of the Holy Spirit left with him. The spirit had been withdrawn and in its place was abject darkness, misery, woe.
A similar feeling was described by Joseph Smith when he lost the 116 page manuscript of his translations, and he fell into grief and anguish of soul, that the Lord later attributed to His withdrawing of the Spirit from him. D & C 19:20.
As with Joseph the companionship of the spirit did finally return to me after a period of sore repentance. On that occasion I did not feel the burning, but I experienced the filling up of the dark and empty places in my soul with peace and light, and I knew the benefit of the gift had returned.