Does Prayer Change Anything? – Bible study

In Eric Rauchs article, Does Prayer Change Anything? Mr. Rauch observes the following:

One of the best descriptions of the purpose of prayer can be found in Arthur W. Pinks book, The Sovereignty of God.

He quotes from the book:

Prayer is not so much an act as it is an attitudean attitude of dependency, dependency upon God. Prayer is a confession of creature weakness, yea, of helplessness. Prayer is the acknowledgment of our need and the spreading of it before God.

Paul said it another way:

Pray without ceasing …. Be anxious for nothing, but in everything by prayer and supplication, with thanksgiving, let your requests be made known to God (1 Thessalonians 5:17; Philippians 4:6).