The prayer meeting is a time for us to cooperate with the Lord by intersiding for His interest. We meet every Tuesday for this purpose as the church.
The profesizing meeting for us to exercise our function as members of the Body of Christ. In this meeting each one has something to share as First Corinthians 14 says.
The table meeting is a time to remember the Lord and praising the Father. We do this by eating and driking the bread and the cup respectively.