In case that’s a serious question, the Holy Spirit is one of 3 in the Holy Trinity. The other 2 being the father (God) and the son (Jesus). The Holy Spirit can be summed up as the guiding conscience of Jesus inside you. The idea is once you have accepted Christ as your savior into your heart (symbolized in the ceremony of Baptism), the Holy Spirit is the mechanism through which you live a life according to the teachings of Christ (love thy neighbor, turn the other cheek, etc.)
So, yeah, Jesus probably wouldn’t have shared Nazi memes.