By animating White Lotus Tile into a creature with Xenic Poltergeist, you unlock its potential to tap for a generous pool of mana based on your shared creature types. Voltaic Construct steps in to convert a portion of that generated mana back into pure momentum, paying its cost to untap the newly minted artifact creature so the cycle can begin anew. Because White Lotus Tile yields more mana than the Construct demands for its activation, you are left with an ever-growing surplus of infinite colored mana.