Its not about detaching from emotions as it is releasing attachment to the emotions in the moment. The emotions come rushing back in.

To me detachment is about letting go of an emotion and not feeling it. Attachment is a desire to hold on to an emotion - to recreate the circumstances with the hope of attaching again (attachment can lead to addiction).

Part of who I am is the string of emotions I feel that makes up my identity. When I let go of those emotions they come back (like the action of a yo-yo at play).