Un Milagro en 90 Días by Lain Garcia Calvo is a 90-day spiritual and personal growth program designed to help you manifest a "miracle"—a significant positive shift in a specific area of your life—through disciplined mental and emotional work. Core Philosophy

The guide is rooted in the "Law of Resonance" and the idea that your internal state dictates your external reality. To change your results, you must change your subconscious programming and your "vibration." Structure of the 90-Day Plan

: Dedicated to "The Voice of Your Soul" (meditation and connection) and visualization. You act as if the miracle has already occurred.

: Sign a "contract" with yourself. Calvo suggests that without a formal decision to finish the 90 days, the ego will eventually find excuses to quit.