what is holyspirit?from were it comes?

He's a helper connecting us to Heaven.Read John 14:26 - But the Comforter, which is the Holy Ghost, whom the Father will send in my name, he shall teach you all things, and bring all things to your remembrance, whatsoever I have said unto you.

The Holy Spirit is God's gift to us. Before Jesus Christ left in this world, He said that the Holy Spirit will be with us. In fact, the Holy Spirit has the power to heal, to cast fight evil, to comfort us etc. The Holy Spirit once He is with us is our protector against the Evil one. I have personally talked to a former Satan Worshipper and he told me that when he see people, there are some people that has a bright light and he can not approach nor speak to him or her. Its like a force field the he can not penetrate. Those people that doesnt have the bright light, he can easily approach and talk to him or her. How we can get the Holy Spirit is to ask God for the forgiveness of sins,turn away from wicked ways and live a righteous life, believe in Jesus Christ and finally ask for the Holy Spirit to come to you. The process is not that easy though, it consists of constant prayer and fasting before we can get the Holy Spirit.