During the Indonesian occupation of East Timor, she fought against the invaders for fourteen years, until the end of 1991.
Morais was married to Aluc Descart, a FALINTIL commander in the eastern region, with whom she had a son.
Rather than have their 17-month-old son living in the forest with the guerillas, they sent him to be cared for by family in Lospalos; however, he was adopted by an Indonesian colonel and taken to Jakarta.
Morais was not reunited with her son until 2003.Morais was elected to the National Parliament of East Timor on 7 July 2012, and remained a member of parliament until 2017.
She served as a member of the Commission for Ethics (Commission G).
In the 2017 elections, she was in position 33 on the ballot, and was not re-elected.