Think of a dense forest, the floor of the forest is completely overgrown. In order to go into the forest you would need to trample out a pathway. It would be hard work breaking trail, and if you only used the path once then it would soon become overgrown again. The more that you use the path the wider it becomes and the more familiar it is to you, the easier it is to get into the forest.
Do you have to concentrate to tie your shoelaces? Probably not these days, but that was not always the case, was it? I am sure that it seemed quite complicated the first time that you did it. You opened up a neural pathway to tying your shoelaces, the more often that you did it, the wider the pathway became.
Learn more about neural pathways – “Simple truth about your habits – NLP” – Blog page.