The main themes of Rhyming with God: Poetic Prayers & Reflections by Penny A. Powell include:

1. Poetic Prayers and Reflections: The book is a collection of poetic prayers and reflections that express the author's spiritual journey and connection with God through poetry.

2. Faith and Spirituality: The content emphasizes a deep, personal relationship with God, highlighting themes of faith, prayer, and spiritual growth.

3. Gratitude and Acknowledgment: The author expresses gratitude to God, family, friends, and mentors who have supported her spiritual and poetic journey.

4. Family and Relationships: There are tributes to family members, reflecting on the importance of familial love and support in the author's life.

5. Personal Growth and Transformation: The poems and reflections discuss personal growth, letting go of stress, and finding peace and purpose through faith.

6. Embodied Worship and Movement: The author integrates physical movement with spiritual practice, emphasizing the connection between body, mind, and spirit in worship.

7. Community and Support: The book acknowledges the support of friends, community members, and spiritual advisors who have influenced the author's journey.

8. Creative Expression: The book highlights the use of poetry as a form of creative expression to communicate with God and share spiritual insights.

These themes are woven throughout the book, reflecting the author's experiences, beliefs, and the impact of her faith on her life and writing.