This is a subset of molecular deconstruction. It is the ability to travel distances through mass by breaking down their physical structure and entering a solid material. With all solid things it's mostly empty space by matching your molecular valences and adjusting it accordingly you could ease the atoms of your body in between matter without collision. Well mostly without collision occasionally the atoms will intersect this will release minute quanta of hard radiation. High-Level user may almost instantly relocate themselves across the landscape by merging with the earth and rock of the area. These users are also capable of separating their mass into multitude of smaller mass (e.g. jumping off a balcony, disappearing into rainstorm by dividing own mass into rain, only to reform later as the rain hit the ground below ect.) They could extend their phasing power to include an undisclosed amount of extra mass as well.