Regarding Jesus' prayer that Christians remain unified, what practical means did he envision for unity?

Well since I'm Pentecostal and your Catholic and we love each other, that goes to show the Holy Spirit can bring unity to the true body of Christ. I guess I'll never understand why so many denominations and don't know what the solution is except to do what the word says, to be in one mind and one spirit. Don't judge, etc. Edify one another. If we follow the word closely we will have a oneness in the spirit.