This paper offers a theological-pneumatological reading of Symeon the New Theologian's Hymns of Divine Love from a classical-Pentecostal perspective, bringing into dialogue the experience of Baptism in the Holy Spirit and the Orthodox doctrine of theosis. Beginning with the centrality of the Spirit's experiential presence in Symeon's spirituality, marked by divine indwelling, uncreated light, and the progressive transformation of the human person, I will explore the points of convergence between Eastern Christian mysticism and the Pentecostal understanding of Spirit Baptism as a relational and transformative experience. I argue that, despite distinct historical contexts and theological vocabularies, both traditions share an experiential soteriology in which the Holy Spirit does not merely bestow gifts but initiates the believer into an ongoing process of conformity to Christ. A close reading of the Hymns of Divine Love allows Baptism in the Spirit must be interpreted not only as charismatic empowerment, but as an event of divine love that inaugurates a dynamic path of participation in the divine life, offering significant contributions to contemporary pneumatology and ecumenical dialogue.