The bodygraph, or Human Design chart, is calculated using two sets of data: the natal or Personality calculation and the pre-natal or Design calculation. The natal calculation is based on the moment of birth, while the pre-natal calculation is based on a time approximately 88 days prior to birth. These calculations take into account the energies of the planets and the hexagrams they occupy at the time of birth. The bodygraph is a visual representation of this unique energy configuration, providing valuable information about a person's strategy, function, learning style, purpose, energy management, drives, and spiritual path. It also reveals strengths and challenges. Each piece of the chart offers a different perspective, creating a deep understanding of oneself. The bodygraph is a perfect reflection of an individual's "operating system", and through Human Design, we can unlock the wealth of information it holds to support personal growth and transformation.