Prayer is a relationship because prayer cannot be done alone.
And that is true. When you are praying it is never done alone. It is done with others, in the power of the Spirit, through Jesus Christ, to God the Father. Prayer is a relationship, because it is based in relationships and changes relationships. So the next time you are praying, remember you aren’t doing it alone. And remember most of all prayer is a relationship, and it’s a relationship worth investing in.