This is a trick I use to reduce the number of things I have to look at on the chart and to visualize trend. You ignore the most recent trend and look at the prior trend to see the major swing points which will be relevant when the trend moves down. If you know what to look for, you can find these points reflected in the recent trend too, but it's much simpler to just look at the prior trend IMO. Also using a line chart simplifies things, but it doesn't mean that wicks don't count. There are other levels, but these are the most important.