The energy for the creation of each of these chakras came to me in this order from first to twelfth. This has no implications for how you might use them. In my process each one was an attunement and seemed to clear the way for the next one in this order.
"Since time began, the heart has been seen as the center of the human body, the melting pot for the divine energy of the crown and the life drive of the genital area...Indeed, most of our decisions would be prosperous and authentic if they were to be made by the heart, the center of relationships, love, and compassion. Some would say human success depends upon evolving our hearts...This chakra affects the physical processes involving the heart and lungs (circulation and respiratory functions)."
New Chakra Healing by Cyndi Dale pg. 39