We live in the third dimension.
Three-dimensional space is a geometric three-parameter model of the physical universe in which all known matter exists. Without the 3 dimensions, we have no space in time.
The Fourth Dimension has been studied and researched by mathematicians and philosophers for over two centuries. It can explained as a spiritual awakening, the jumping of time. It is that life defining moment before 'shit gets real'. That moment of clarity, or that time you were able to get that extra breathe in before you jump in head first. That moment when time stands still, when everything becomes clear, and nothing else matters.
Welcome TO THE Fourth Dimension.