I centered the entire chart to the year 1975, because 1975 is in the middle between the years 1950 and 2000.
Step 1: I measured the distance between the middle of the year 1932 to the middle of the year 1975, which is 42.5 years
Step 2: I counted the same distance from 1975 forward into the future, which results in the year 2017
Step 3: Finally I added several drawing elements (double curve, XABCD pattern, Schiff , sine line) and connected them to the these time areas, which resulted in some better than expected harmonies
The sine line doesn't mean that the Dow Jones has to crash in the year 2017, it only means that a cycle might end there and a new cycle might start after 2017 (which could result in even higher prices).