The book "How to Be an Adult in Relationships: The Five Keys to Mindful Loving" by David Richo provides a practical guide to navigating relationships through mindful love. It emphasizes five essential components of love, called the "five A's"—attention, acceptance, appreciation, affection, and allowing—which are crucial for building healthy, mature relationships.

Richo blends Western psychology and Eastern spiritual practices, particularly mindfulness and loving-kindness, to help readers develop these five qualities. The book argues that true intimacy involves both personal growth and giving these five A's to others.Richo also emphasizes how early life experiences shape adult relationships and how healing those past wounds is essential for forming lasting, intimate bonds.

He integrates psychological tools with spiritual practices, guiding readers on a journey to become more self-aware, compassionate, and capable of deep, mindful love.The introduction of the book sets the stage by exploring how love is both mysterious and attainable with the right skills, which can be developed through consistent practice​.