It seems to be impossible to grasp the present moment. To grasp it you need to use your mind and memory which take your attention out of it. If all your attention is on the present moment, there can be no mind. There is no space for the mind to operate in. We start of with staying in the immediate present and try to get closer and closer to the real present moment. In the process we keep dropping off all attachments and other mind occupations. Suddenly, we are totally open, like real time streaming in a computer without buffering. All the buffering energy gets freed up allowing us to go more and more deeply into the present. It definitely feels like a parallel dimension.