Pentecostalism and Christian Mysticism reflects on the fact that Pentecostalism is a contemporary manifestation of the Christian mystical tradition. With the present work, it is intended to answer what would be the true Pentecostal identity after more than one hundred years elapsed since the emergence of Pentecostalism. Faced with the global expansion of the Pentecostal movement, and in the face of different types of Pentecostalisms that are manifested today, the work proposes a return to the Pentecostal roots of the early 20th century to capture its original ethos. At the center of Pentecostal spirituality has always been the Baptism in the Holy Spirit. Such baptism refers to a type of experience that, according to the historical traditions that influenced the formation of Pentecostalism, can be called a Christian mystical experience. The consolidation of a Pentecostal identity based on its historical background and theology contribute to a Pentecostal pastoral and ecumenical dialogue.