“Gary Tyra’s accessible treatment of spiritual life in, with, and through the real person of Christ available by the Holy Spirit is a welcome addition to recent spiritual formation literature. Tyra’s account is grounded in theological, christological, and pneumatological realism. Tyra never loses sight of the idea that the spirituality of Jesus is a formational-missional spirituality for the sake of the world. Biblically grounded and theologically engaged, Tyra’s Introduction to Spirituality is an excellent resource for anyone interested in going deeper in Christian spiritual life.”—Steve L. Porter, senior research fellow and executive director, Martin Institute for Christianity and Culture, Westmont College; editor, Journal of Spiritual Formation and Soul Care

“Through his lucid and persuasive language, Gary Tyra masterfully engraves in his readers’ minds that true spirituality is biblically based, theologically sound, and essentially missional. Enjoying an ‘I-Thou’ relationship with God brings us to a transformed, God-honoring, and fruit-bearing lifestyle through the leading of the Spirit. This includes being mentored by the risen Lord to become like him before others. Tyra serves not just an appetizer but a full meal to his readers: inviting all to learn, introspect, and grow in their spiritual journey. I recommend this book to all who desire to live a life pleasing to God.”—Roji Thomas George, professor of New Testament, South Asia Institute of Advanced Christian Studies, Bangalore, India

“Gary Tyra offers his readers a biblically informed Christian spirituality that is thoroughly trinitarian. By weaving the idea of ‘keeping in step with the Spirit’ throughout the book, he invites readers to abide in and walk behind Christ in the power of the Spirit. This is what makes his proposal—which requires foundational convictions that produce a set of commitments that will, in the end, bring forth an array of customs of spirituality—theologically real. Far from being just a set of principles and rules, these components form a triadic continuous living cycle of developing roots, exhibiting shoots, and producing fruits.”—Florian M. P. Simatupang, lead pastor of IES Christ the King; Theology Faculty at Sekolah Tinggi Teologi Satyabhakti, Indonesia