PK is Amir Khan's implicit Gharwapsi.

I watched PK. I do not know the intentions of Amir Khan or of Raju Hirani, who has a knack of romanticising goons as in "Munnabhai" , or of iconoclasts as in "PK". I don't believe that there is any evidence to prove that such tendencies flow from Hirani's alleged links with Dubai/Karachi based iconoclastic goons of real life.

I assume he was honestly trying to find answers to questions that have troubled our rishis since time immemorial,  but he may not have had the time or inclination to study the wisdom of these rishis in the vedas and upanishads, ... wisdom which would have quenched some of his quest for God.

Since the film boiled down to blasting gurus and sadhus,  I believe the fine gentlemen hold the same dismal view of the babas and prophets of yore.  Each one of each religions Godmen were all babas and sadhus of their time whose handouts continue to guide/misguide a majority of earthlings today. PKs renunciation of prophets, I would logically believe, is indiscriminate and I  believe his dislike for Holy Pilgrimages is equally for Amaranth (as portrayed in the film) as it is for the far more remote pilgrimahe stations which are not shown in film.

His dissing of faith in the stone god may be the same as that for all crucified or invisible Gods.  That "missing Gods" are not limited to the theiving Hindus but equally for the far richer Church and Saudi petro funded religious enterprises. I think we should credit Amir Khan for  renouncing his own faith and bravely becoming apostate.

Coming back to the native wisdom on the topic of discussion re-initiated by PK, let's take a quick look at the  4 mahavakya of Vedas for hint. That such discussion is already documented in a religion called Hinduism, it indeed points to how makers of PK agree to hinduism, knowingly or unknowingly. It's Amir's implicit Gharwapsi moment.

Anyway, so These 4 mahavakyas are the essence of the theme of the 4 vedas... a kind of executive summary of their deep philosophical discourse, interpreted in detail in the Upanishads. They say:

1. Prajnanam iti Brahmaan - wisdom is the soul/spirit. Knowledge itself is Brahmaan.

2. Ayam ātmā brahma - "I am this Self (Atman) that is Brahman"

3. Tat Tvam Asi - You are that Brahmaan

4. Aham Brahmāsmi - I am Brahmaan myself.

So where is God (or Brahmaan)? The last mavakya is the best. .. It says you yourself are brahma. It's a federated godliness ... and says each of the 1.25 crore population (then) of Bharat are all devetas. You find God within you.

And since atma is indestructible you can find god in all living beings. You find God in cows being fed grass (which was made fun of in the film) as much as you can find God in the cow being slaughtered for sacrifice (omitted from explicit ridicule in the film).

A critical analysis of this deep Vedic  philosophy is impossible in this limited post but it's very clear, had the makers of this film even went beyond the superficiality of wine and coconuts they would have done themselves a lot of favour in finding God in our own Hindu religious texts and culture.  For a beginning,  let's welcome Amir on his Gharwapasi :)