Angel by Ne-Yo is a soulful R&B ballad that delves into themes of love, admiration, and devotion. The song speaks about the intense feelings the singer has for his significant other, referring to her as his 'angel'. He describes her as a divine presence in his life, someone who brings light and happiness. The lyrics emphasize the purity and beauty of his love for her, highlighting moments where she uplifts and inspires him. The poignancy of the song lies in its heartfelt tribute to a love that feels almost supernatural, elevating the partner to an angelic status.