The Spirit is, first and foremost, God’s personal presence on Earth and with men. The Spirit is a person and not merely a force.
Throughout the Bible, we see the Holy Spirit power used to empower individuals for specific tasks. Joseph is empowered to understand and interpret dreams and a group of people - the prophets - are empowered to bring messages from God to the people of Israel and to see what is happening from God's point of view.
In the New Testament, the Holy Spirit is the Spirit of God on Earth sent to transform the human heart and empower people to truly love God and follow His instructions. It is through the life of Jesus, God carries out this return of His Spirit. Even as the Holy Spirit was with men in the Old Testament, the revised covenant from Jesus, gave the Spirit to all who would follow Him.
4 And being assembled together with them, He commanded them not to depart from Jerusalem, but to wait for the Promise of the Father, “which,” He said, “you have heard from Me; 5 for John truly baptized with water, but you shall be baptized with the Holy Spirit not many days from now.” 6 Therefore, when they had come together, they asked Him, saying, “Lord, will You at this time restore the kingdom to Israel?” 7 And He said to them, “It is not for you to know times or seasons which the Father has put in His own authority. 8 But you shall receive power when the Holy Spirit has come upon you; and you shall be witnesses to Me in Jerusalem, and in all Judea and Samaria, and to the end of the earth.”
At the beginning of Christ's mission, there is a scene where He is being baptized in the Jordan River by John the Baptist. The Holy Spirit, God's Spirit, comes down on Him in the form of a dove and releases Him to begin his mission of healing the human condition and starting a new creation. We see this happen when He goes out, heals people and forgives them for their sins. Christ, empowered by the Spirit of God, goes throughout the world fixing the chaos and disorder that mankind had brought.
2 For the law of the Spirit of life in Christ Jesus has made me free from the law of sin and death. 3 For what the law could not do in that it was weak through the flesh, God did by sending His own Son in the likeness of sinful flesh, on account of sin: He condemned sin in the flesh, 4 that the righteous requirement of the law might be fulfilled in us who do not walk according to the flesh but according to the Spirit. 5 For those who live according to the flesh set their minds on the things of the flesh, but those who live according to the Spirit, the things of the Spirit. 6 For to be carnally minded is death, but to be spiritually minded is life and peace. 7 Because the carnal mind is enmity against God; for it is not subject to the law of God, nor indeed can be. 8 So then, those who are in the flesh cannot please God.
Before creation ever even began, we see the Spirit of God hovering over the dark, disordered waters of the earth, ready to begin releasing God's plan for creation. In the Bible, any time we see a description of the Spirit of God, such as when the Holy Spirit was hovering over the waters of the Earth, the Hebrew word "ruakh" is used. This word is translated to express a release of energy. That energy is what brought the Earth to life. The same energy is in you and every Spirit filled believer, ready to be released into the world for the salvation of the world.
Today, through Christ and the power He has given His followers, God's spirit continues to hover over a dark and chaotic world, slowly healing it and working towards the day when it is restored to its former glory.
The Holy Spirit is our teacher and our guide through life. Our relationship with Him empowers our life.