This is an end of day strategy looking to exploit trend continuation moves on daily time frames. In an uptrend a pullback to the lower portion of the EMA envelope satisfies initial criteria and defines the daily bar as an 'activation bar'. We're long if price breaks above the previous day's activation bar.
The opposite is also true. A in a downtrend a short activation bar sits in the upper bracket of the EMA envelope. When the activation bar is established (closes with said criteria) we sell at break of this daily bar to the downside.