Michael answers the following questions in this video:

A monk recently told me that it is well known in India that thieves use this udumbu lizard to help them climb up buildings to help them in their thieving work! Isn’t the ego the same? With no form or substance of its own, the apparent ego borrows the light of the Self to grasp form and feed its mischief!

Note: This question seems to have been asked in reference to verse 130 of Guru Vācaka Kōvai:

உடம்போ டுலகை யுறுதியெனப் பற்றி மடம்படுவோன் சாந்தி மடுத்தல் — மடம்பேர்ந் துடும்புபோன் றுள்ளத் துயிர்நிலையுற் றோவான் இடும்பையுற லென்று மில.

uḍambō ḍulahai yuṟudiyeṉap paṯṟi maḍambaḍuvōṉ śānti maḍuttal — maḍambērn duḍumbupōṉ ḏṟuḷḷat tuyirnilaiyuṯ ṟōvāṉ iḍumbaiyuṟa leṉḏṟu mila.

பதச்சேதம்: உடம்போடு உலகை உறுதி எனப் பற்றி மடம் படுவோன் சாந்தி மடுத்தல் [என்றும் இல]. மடம் பேர்ந்து உடும்பு போன்று உள்ளத்து உயிர்நிலை உற்று ஓவான் இடும்பை உறல் என்றும் இல.

Padacchēdam (word-separation): uḍambōḍu ulahai uṟudi eṉa paṯṟi maḍam paḍuvōṉ śānti maḍuttal [eṉḏṟum ila]; maḍam pērndu uḍumbu pōṉḏṟu uḷḷattu uyirnilai uṯṟu ōvāṉ iḍumbai uṟal eṉḏṟum ila.

English translation: One who is ensnared in ignorance, clinging to the body and world as real, [will not ever] achieve peace. Leaving ignorance, one who like an uḍumbu steadfastly does not let go of the real nature of the soul in the heart will not ever experience suffering.

Explanatory paraphrase: One who is ensnared in ignorance, clinging to the body and world as uṟudi [stable, permanent, certain or real], [will not ever] achieve peace. Leaving [such] ignorance, one who [clinging firmly] like an uḍumbu [a variety of monitor lizard noted for its ability to cling firmly to any surface] steadfastly does not let go of the real nature of the soul in the heart will not ever experience suffering. [Therefore, if we wish to attain peace and be eternally free of suffering, we need to give up considering the body and world to be real, and instead need to cling firmly like an uḍumbu to our own real nature, namely sat-cit, pure being-awareness, which is what is always shining in our heart as ‘I am’.]

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.