I heard a great meditation recently.   A few points.

- If the Holy Spirit is not growing in us daily...if His Spirit is not growing in us ("He must increase...") then we will become less than what God had intended for us. 
- We will stall in life..our apostolic effectiveness will dissipate, and in general our overall effectiveness in our life will be impacted negatively.    
- We will begin to seem small to others, less.  
- Our thoughts will seem small and petty, shrunken, infertile as it were, less about growth and betterment, and more about the shrinking self. 
- Defensiveness and critical spirit will dominate.
- Resentments, memories of past offenses will crowd out in our mind and thoughts of harder and quieter service to God and to others. 
- We will become half-men, or half women, depending.