It is better in prayer to have a heart without words than words without a heart. (Mahatma Gandhi, 19th-20th century India national independence leader)
Whether it is in moments of extreme ecstasy or deep distress that you cannot express yourself in clear, meaningful vocabulary, it’s comforting to know that God hears and understands. As Gandhi suggests, that is so much better than the offering of eloquent speech without a heart of humility and worship.
[The Holy] Spirit helps us in our weakness. We do not know what we ought to pray for, but the Spirit himself intercedes for us through wordless groans. (Romans 8:26)