long term significant levels of stock market

Hi
there are two major groups of lines.
First of all, yellow major channel which caused significant reverses in past. more over, its midline is very important too. I believe it is probable to see a reversal from this midline close to 27500 level.
secondly, it is drawn some blue trend lines which are historical. If chart penetrates into below of 27500, we will count on these lines.