Sarvam Khalvidam Brahma
All that is here is brahman
Tatastha Lakshana
Ishvara
1. Brahman is cause of the universe
2. Brahman is manifest in multifarious names and forms, as jagat
3. Brahman is non different material cause and intelligent cause
Jiva
4. I is waking individual knower
5. I is the dreaming individual knower
6. I is the sleeping individual knower
7. I is manifest as the individual body minds
Svarupa Lakshana
Ishvara
1. Brahman is limitless as it is the cause of the universe
2. Brahman is limitless existence
3. Brahman is a conscious being
Jiva
3. I is knower in general, the awareful being, of the nature of consciousness or awareness
4. I is of the nature of existence, awareness
5. I am limitless consciousness as time wise I always exist, space wise I am aware wherever I am.
Mahavakya aikyam
I is brahman, therefore brahman is limitless existence consciousness , and I is consciousness that is limitless existence
Here we minus the tatastha lakshanas involved, and consider only the svarupa, hence I end up being the limitless cause of the universe as a result, I understand myself as all pervasive brahman.
This allows me to understand my own nature as shuddha brahman, I am limitless existence consciousness.
If I see that, then I see all that is here is me, the limitless existence consciousness, and every name and form is incidental to me, given I am nameless and formless.
I alone am appearing as this entire universe, I am the one they call as ishvara, as the ruler, I am the one manifest as this universe of whom I am the ruler , I am the only being, and I am limitless being.
Who is there besides me, all this is, is me.