This is the 3002nd most frequent Portuguese word.
taís
"Taís" is a given name in Portuguese, similar to "Thais" in English.
In this sentence, 'Taís' is used as a proper noun referring to the name of a city.
Muitas pessoas gostam da cidade de Taís.
Many people like the city of Taís.
Here, 'taís' is used as a demonstrative adjective meaning 'such' or 'like those.'
As práticas que vocês seguem são taís que promovem o bem-estar.
The practices that you follow are such that they promote well-being.
In this case, 'Taís' is a proper noun referring to a person's name.