Pythagoras - 'purpose of life'

Figure: The Tetractys is a triangular figure consisting of ten points arranged in four rows: one, two, three, and four points in each row. As a mystical symbol devised by Pythagoras.

Other trivia:

• Polymath
• Believes music can work as a therapy for soul
• He had woman pupils - unconventional move on that era
• Learned from Egyptians, Chaldeans on his travel into those places
• Mathematics practiced as mystical reason, eg,  
• Monad - number one - attributed to God
• Dyad - number two - attributed to matter
• '10 was regarded as the "perfect number" and the Pythagoreans honored it by never gathering in groups larger than ten'. Pythagoreans devised 'Tetractys' a divine symbol.
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reference: pythagoras-olympic-games