[Krruqgwt]

As I understand it, free investigation is the middle way between the extremes of a) blind faith and dogmatism and b) accepting and rejecting whatever you like.

We need to look beyond what is our opinion and belief currently.

From our experience and investigation we can then reject anything which, when accepted, practised and perfected to a degree, leads to more aversion, more craving, and more delusion. These practices are then found to be not beneficial and are best to be given up, or avoided.

Likewise, accept anything which, when accepted and practised, leads to contentment, unconditional love and gaining of knowledge as these things will allow us to continue to develop a happy and peaceful mind and continue to move forward in our practice.

From my experience and understanding of the Kalama Sutta this is how we decide what should be and should not be the spiritual practice.