The stronger the cultivator attempting to become a Transcendent, the stronger the Treasure created in the likelihood of his failure. This Treasure would be all that was left of the cultivator.
If the cultivator that failed had an Iron or Silver Grade Human Avatar, then the resultant body part refined by the Bolt of Transcendence was called a Minor Treasure.
Similarly, if the failed cultivator had a Gold or Mystic Grade Human Avatar, then the resultant body part refined by the Bolt of Transcendence was called a Major Treasure. The same applied to Pranic Beasts too, though only Mystic Grade Pranic Beasts could invoke a Bolt of Transcendence.
The five Major Treasures depicted in Sumatra Chronicles were exactly that. The Major Treasure of Cure was the result of a Bolt of Transcendence that landed on the previous Gannala during the time the Boar King became a Mystic Grade Pranic Beast.