What He is doing in us is always more important than what He is doing through us.
After all that's happened, have I been discouraged because I thought my usefulness is less? Am I scampering to find new things to do, to continue to "bring glory to God", whereas actually He wants me to slow down and take more time to learn to know Him more personally, and enjoy Him?
Yes, man's (and woman's) purpose in life is to glorify Him and enjoy Him forever. What He is doing in me is more important to Him than my usefulness. He wants me transformed into the likeness of His Son. All I can say is, "Here am I, Lord."