Surely we can force someone to do something, through law, through intimidation, there are many ways to force someone to do something, but that is not the solution is it?
There are examples of modern societies where religion is "forced" onto people, and if it is not religion, it is the appearance of religion: forbidden to eat this or that, forbidden to wear this or that, obligation to wear this or that, obligation to pray, obligation to go to prayer hall, etc...
Doesn't sound much like religion to me...
Does it really benefit people when they engage in outward religious practice when they do it out of obligation?
Does this make them resent the tradition they are obligated into?
Or is it that they do create merit, even though they do things by force?
It seems logical to me that acting with faith in what we do is more potent than acting out of obligation.
When faith is cultivated, then there is no need to obligate.
So to make the horse drink, there is no other way than to make the horse WANTING to drink.
How do we do that? I bet there would be a different method to apply to every single horse...
I doubt we'd find a unique answer to that question.