Part of our purpose here on earth is to serve and glorify God in all we do. To me, this song is a request for God's help in our quest to become more Christ-like as His followers.
Fall afresh: Send your spirit to renew me Lord.
Melt me: I surrender all to you precious Jesus.
Mold me: You created and shaped me Lord with a plan and purpose in mind.
Fill me: Come, thou Holy Spirit, fill me with all I need.
Use me: Lord, I am your servant, use me according to your purpose to tell others about You, and glorify You in all I say and do.
Lord, give me the strength to fulfill the dream You have put in my heart.