sa tayaa shraddhayaa yuktastasyaaraadhanameehate |
labhate cha tataha kaamaanmayaiva vihitaanhi taan || 22 ||

Engaged with faith, that person worships that (deity) and his desire is fulfilled, but that (desire fulfillment) is delivered only through me.
saha : that person
tayaa : that
shraddhayaa : with faith
yuktaha : engaged
tasya : that (deity)
araadhanam : worship
eehate : performs
labhate : fulfilled
cha : and
tataha : his
kaamaan : desire
mayaa : through me
eva : only
vihitaan : delivered
hi : but
taan : that (desire fulfillment)
When someone chooses to pursue a finite or a worldly goal, they run towards a finite deity instead of going towards Ishvara. We saw this in the previous shlokas. Shri Krishna continues that point here by saying that Ishvara does not object when devotee seeks a finite goal from a finite deity. In fact, he strengthens that devotee’s faith by delivering what the devotee asks of the deity.
Faith is a process that most of us do not fully comprehend. But it is a reality. Even in the medical profession, placebos or pills made of inactive ingredients such as sugar are known to cure patients by sheer power of faith.
So Shri Krishna says that even if a devotee approaches a deity with a finite goal, Ishvara is ready to deliver that goal as long as the devotee’s faith in the deity is strong. By fulfilling finite desires through the lower deities, Ishvara hopes that the devotee will learn to further subdue his ego. One cannot have an increase in faith without a decrease in ego.
As desires are sought with greater and greater faith, and the corresponding desires are fulfilled, the devotee’s faith increases. This process has the potential to result in the spiritual evolution of that devotee. He will evolve from seeking finite goals to seeking the infinite – Ishvara himself.
This is the ideal state, but it is totally up to the devotee to make that transition. Unfortunately, most devotees get stuck in the pursuit of finite goals, as we shall see in the next shloka.