Assim is the 90th most used word in the Portuguese language!
Assim has two main meanings:
Assim in Portuguese = like this, like that
The verb SER is used because this is a permamnent condition.
I just wanted to show the previouse example with "we" rather than "I" 😉
GOSTAR is usually followed by a de, but in this case we're not talking about anything specific - just this/that.
Did you notice how being is expressed by the, de ser?
A good example of SER in the past tense.
Assim = as soon as
In this context, assim triggers the subjunctive mood YAY! the FUTURE SUBJUNCTIVE, YAYY!