On this world everything has three dimensions, no more, no less. The void, first and second dimensions are only mental abstractions but they don't exist , at least not in this world. Nor does the fourth and fifth dimensions. We can create equations and formulas, laboratory conditions to replicate the void but no one in this world has seen the void, first or second dimensions nor the fourth or more dimension. There is a fourth dimension that is time but we leave it constant because time is the capsule where our tri-diemsional world travels and is a constant for everything.