Ever since Barry gained the memories of his future self not long ago, his control over the Speed Force had continued to grow. His speed had been increasing almost every moment. His understanding of the Speed Force had also gradually deepened. Until, at a certain moment, while running in circles, he seemed to break through the shackles of universal space in an instant. His entire body instantly crossed the dimensions of time and space. Breaking through the universe's space-time barrier, he entered a special dimensional space.