Let go of the past attunements aim to energetically support you as you let go of the past and move forward in life. In order to move forward and create the life you desire, you must let go of the past. This may be anything that is holding you back such as emotions, thoughts, past events, situations etc. When you let go of the past it becomes much easier to be more present and focus on the future you want to manifests the way you want. The Etheric Cord Maintenance Attunement is a good place to start.