After learning his father did not die when he was 7 a man sets off to find him, and does, at a silent monk monastery halfway across the world.

Where is the struggle and end goal for the lead character? It seems like the entire story is revealed in the logline. I would focus more on what happens AFTER the lead finds his long lost father. Clearly, the father is not the same person as before he joined the monastery. I see potential in this, as long as you're willing to dig deep into the plot and find a way to pull the reader in.

Lead character: A man (That narrows it down to about 4 billion or so possible people)

A shy banker.
A rough FBI agent
A shallow attorney
A hopeless romantic
A Narcissistic children's author

It only takes a word or two, to give the reader a little information about lead character.