"What is life? Life is more than profound than thought; thought never surpasses life. It also is deeper than emotion; emotion is superficial in compassion with life. Whether thought or emotion, it is relatively external. What, then, is life? The Lord Jesus declared: "I am the life."
We should not hastily conclude that we have met life when all we meet is a kind of hot atmosphere, such as a so-called spiritually hot atmosphere. We should ask instead, whence does such atmosphere arise? Plenty of experiences confirm to us that many who are skillful in creating hot atmosphere know very little of the Lord, many excitable persons are quite lacking in the knowledge of the Lord. Only Christ is life, the rest is not.
We need to learn the lesson of knowing life. For life depends not on how enthusiastic is our emotion or on how manifold is our thought; it rests exclusively on whether the Lord has manifested His own self. There is therefore nothing more important than to know the Lord. As we are knowing Him, we are touching life. We ought to see before God the meaning of Christ our life. Those who are easily excitable or especially clever are not necessarily people how know the Lord. Knowing Him requires a spiritual seeing. Such seeing is life and it transforms us. If we know the Lord as our life , we realize the utter futility of all natural efforts in spiritual matters. Hence, we look to Him alone."
-Watchman Nee, Christ, The Sum of All Spiritual Things