The Holy Spirit is part of the trinity including God and Jesus. The Holy Spirit is in both God the Father and Jesus and a separate person as well. That is why we say "God the Father, God the Son and God the Holy Spirit. The Holy Spirit is just one part of who God is. The Holy Spirit is also the love that flows through your body and helps you choose the right path towards God. The Holy Spirit is also the one who forgives us when we make a wrong decision and ask God to forgive us. The Holy Spirit is always there to guide us and to help us to live like Jesus.