THE CONDITION OF THE MIND
Because the mind can assist the spirit, even though its position is much lower than the spirit, a believer must keep his mind in a normal condition to enable it to search the interpretation of the spirit and assist in any weakness of the spirit. The activities of the spirit are governed by their laws. Likewise, the activities of the mind are governed by their particular laws. When the mind is free to work, the burden is light. Should it become stretched (like one stretches a sling), it cannot work freely. The enemy knows that we need the mind to assist the spirit in order to walk according to the spirit. Therefore, he always presses us, keeping our mind excessively stretched and unable to function normally in order that it will not be able to assist the spirit when it is weak.
Moreover, our mind is not simply an organ to assist the spirit; we also obtain light through it. The Holy Spirit of God gives light to the mind through our spirit. If the mind is exercised excessively, there is no possibility for it to receive light from the Holy Spirit. The evil spirit knows that if our mind is in darkness, our whole being will also be in darkness. Therefore, it endeavors to cause us to think excessively so that we cannot be quieted to work. As a believer walks according to the spirit, he must prohibit his mind from continually turning. Concentrating on one theme, anxiety, sorrow, or overly considering what the will of God is, makes the mind unable to bear the burden and work. Only by maintaining a quiet and peaceful mind can one walk according to the spirit.
Since the mind occupies such an important position, when working with others, a believer must be cautious not to interrupt the thoughts of his brother. Breaking a train of thought can cause the mind to suffer. When the Holy Spirit leads a believer to consider a matter through the spirit, an interruption by others is a very fearful thing. If a thought is interrupted, the mind will be stretched, and consequently, it is harder to work with the spirit. Hence, not only should we keep our mind free, we should also take care of the mind of our brothers. Before speaking to a brother, we should first check the trend of his thought and then speak to him. Otherwise, we will cause him to suffer.
(Spiritual Man, The (3 volume set), Chapter 24, by Watchman Nee)