Is severance of the knot complete destruction of ego?

In this video filmed in Kensington Gardens on 23rd May 2023 Michael answers the following two questions asked by Geetha: ----more---- "Verses 942 and 943 of Guru Vācaka Kōvai talk about severance of the knot. Does severance of the knot indicate the complete destruction of the ego?" and: "In verse B19 of Guru Vācaka Kōvai [verse 16 of Upadēśa Taṉippākkaḷ], Bhagavan writes: ‘The state of sleep in waking will result by subtle investigation, in which one always examines [or keenly attends to] oneself. Until sleep shines blending in waking [and] in dream, incessantly perform that subtle investigation’. Does severance of the knot described in verses 942 and 943 result in wakeful sleep, or does enquiry continue beyond that until it results in wakeful sleep?" This episode can also be watched as a video here and a more compressed audio copy in Opus format (which can be listened to in the VLC media player and some other apps) can be downloaded from here.