Following in yesterday's track, here is 
Triad, which relates to surface. "Three is the firstborn, the eldest number."*
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| ©Kathleen O'Brien, The Mystery of Numbers, Triad, 12 x 7.5" 
 
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Triad is a Golden Rectangle.
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| ©Kathleen O'Brien, The Mystery of Numbers, Triad, detail, square | 
"The triangle encloses the smallest arena within the greatest perimeter. It is the initial shape to emerge from the 
vesica piscis"*, created by joining the two points of the line with the upper intersection of the 
vesica piscis. Taking this square away, the next Golden Rectangle remains;
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| ©Kathleen O'Brien, The Mystery of Numbers, Triad, detail, Golden Rectangle 
 
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| ©Kathleen O'Brien, The Mystery of Numbers, Triad, detail, square | 
"Ancient mathematical philosophers referred to the triad as prudence, wisdom, piety, friendship, peace, harmony, a statement about relationship and balance. Trinity is the preeminent symbol of divinity."* Taking this square away, the next Golden Rectangle remains;
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| ©Kathleen O'Brien, The Mystery of Numbers, Triad, detail, Golden Rectangle 
 
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The ephemera is of pineapple, and the three botanicals are Larkspur petals. What are your associations about three?
*Words in Quotes are from 
Divine Proportion by Priya Hemenway