This is the 169th most frequent Estonian word.
ennast
"Ennast" means "oneself" in English.
'Ennast' is used as a reflexive pronoun representing the object of the verb that refers back to the subject.
Ma armastan ennast.
I love myself.
Here, 'ennast' takes the role of emphasizing the person (you) who should relax, acting as both performer and receiver of the verb.
Sa peaksid ennast lõdvaks laskma.
You should relax yourself.
'Ennast' is again a reflexive pronoun here, referring back to the subject performing the verb 'näeb' or 'sees'.