pūrṇam adaḥ -3-

Isha Upanishad is a key scripture of the Vedanta sub-schools
and an influential Śruti to diverse schools of Hinduism

Osho e.g. has talked about it as well...

the name 'Isha Upanishad'
derives from its incipit:
'īśā vāsyam'...

'enveloped by the Lord'

or 'hidden in the Lord (Self)'

it discusses the Atman
the Soul, the Sélf !


~bron~