The Holy spirit is believe to be part of the trinity which is another fundamental Christian believe. The trinity consists of the father the son and the holy spirit. Christians are called to Love God and the Holy Spirit.
It is important that if a person wants the guidance of the holy spirit that they ask for it because the holy spirit will only work inside a person if a person allows it to work inside them. A good example of the power of the holy spirit is when tongues of fire descended upon the disciples and gave them the power to preach the word of God in many languages and therefore making the gospel a universal gospel.
Throughout the bible, Jesus lets the Holy Spirit guide him even when he knows that he is about to die. He goes to pray at Gethsemane and says to God “Let it be your will not mine.” This is similar to what Mary said to the angel during the annunciation. Such simplicity shows purity and the activeness of the holy spirit throughout a person.
"... God sent forth His Son, born of a woman, born under the law, to redeem those who were under the law, that we might receive the adoption as sons. And because you are sons, God has sent forth the Spirit of His Son into your hearts, crying out, "Abba Father". Therefore you are no longer a slave but a son, and if a son, then an heir of God through Christ. . . . (Galatians 4:4b-7).
God also puts the Holy Spirit inside children because he lives them. In fact Jesus said “Let the little children come to me.” Throughout the bible Jesus implies that the Holy Spirit is from God and is powerful.
The Holy Spirit is also what ties us and bonds us with God. Through this we are his brothers and sisters. The holy spirit is also what links Christians together and gives them an opportunity to understand and live one another.
Jesus wanted Christians to live in this way and he came to earth to save humans not o judge or destroy them. He also strengthened their faith and made it clear that Christians were Holy or set apart and it is by the holy spirit that Christians are set apaprt.