Transitivity
Transitivity is a feature of certain verbs. All transitive verbs in Toki Pona can take a direct object governed by the particle e.
How transitives work
Transitives in Toki Pona are, generally, along these two lines:
to cause to be X
mi pona e nimi pona e ni
I cause ni to be pona
mi jan e ilomi jan e ilo
I cause the ilo to be a jan
to apply X to something
mi luka e nimi luka e ni
I apply (my) luka to this