What is the meaning of Pittä?
to have to, to be required to, must [with allative or nominative , along with first infinitive]
to be necessary
to hold (with one's hands, etc.)
to hold, keep
to arrange, organize (a feast, etc.)
to wear, be wearing, have on
to consider, regard
should (not), better (not) [with first infinitive]
Source: wiktionary.org