What is prayer? This is not as easy a question to answer as some might think. It has become, in the English language a word of varying ideas and relative meanings. It is our purpose in this study to work out Biblical concepts and examples of prayer used throughout the Scriptures in their meanings, usage and context. Does prayer change things? What do we ask for when we pray? How should we pray and when should we pray? Do we need to pray? If we do not what will or will not happen? All these and more we will study out and reach a definitive answer for each in the process.