Praying to impress God, not people

Jesus addresses people praying as another example of doing religious things to impress people (Matthew 6:5-8). He talks to the crowd about praying in secret (in the closet); praying using meaningful words and phrases (not repetitious words); and God’s knowledge of knowing the needs of His people. The Bible has many examples of people praying. When taken as a whole, how would someone summarize these prayers and their purpose? Simply stated, it is people speaking to God about various thoughts