A simple example here would be a Legendary magical crystal which acted as the source of mana in a mageweath array. If they did not use the mana transferring tube before the mana entered the circuit, the lifespan of both the source of mana and the mana transferring tube would only be able to reach 100 years. If one were to add the mana transferring tube to the source of mana, he would be able to slow down the usage of the source of mana, and lengthen the lifespan of both the source of mana and the mana transferring tube. The mageweath array might be able to sustain activity for more than 1,000 years. Furthermore, as the use of mana became more efficient, the mageweath array would be able to exert greater powers.