Prayer . . . a conversation with God, usually via words. Sometimes God and I communicate visually: somebody’s face pops up in my head, along with the impression that I should pray for that individual (and we’re back to words); or I make a simple hand motion (like pressing two fingers tightly together while thinking–in words–about someone’s marriage).
My whole relationship with God is language-based. “God created mankind in his own image” (Genesis 1:27-NIV). Do you suppose in God’s image includes the use of words?