“The first phase is from birth until the age of 28.6 years. During this first stage, your life is all about experiences and experimentation. You act very similarly to a third line profile. The second phase goes from 28.6 years until approximately fifty years of age. Most people don't really feel this phase until they are about thirty-five years old. During this second phase, you may notice that life isn't as “edgy” and sharp as it was in your”
―
Karen Curry,
Understanding Human Design: The New Science of Astrology: Discover Who You Really Are