I am
Brahman,
the source
of all

What is this "I"?
You will, on close introspection, find that what you really mean by "I" is the ground-stuff upon which all experiences are collected.

Erwin Schroedinger

I am
You,
who says
I am

Tat
twam asi,
That art
Thou

I am
all that
is and
knows