When we look at the major religions specially the abrahamic religions the norm today is it is enough to belive in God or Jesus to get to heaven. But it is really that easy?
In most Asian religion the teachings say do this (the there are guidelines) and you will see progress, and if you do really well you reach enlightenment ( you must walk the path you self, not just get taken up by Buddha or Shiva if you belive in them)
Should humans not do their best to do what the religion say "they should do" instead of just Yes i belive and now i go to heaven?
I do not judge anyone who do have the belief of "now i belive then i go to heaven" I only ask the question because i not sure i understand how it would be possible.
Personally, I see action and behavior as primary, and belief as secondary. But you're also mixing paradigms here. One paradigm does hold belief as more important than the other one does. Also, the beliefs affect the behaviour. Dharmic adherents holding reincarnation, are naturally more patient. Death and birth happen over and over.