Regarding anything as heretical is a religious view. Discard it and check yourself through experiential practice and logical exercise. There are many Buddhist/Bön teachers who will never insist on you accepting any idea/dogma nor judge you for thinking different and only guide you to how to actually see it, without harming yourself. Needless to say, as a rather-rational thinker, this is the kind of gurus I prefer. Orthodox dogmatists are there for a different kind of minds. People are different and there are to be ways and teachers optimal for all kinds of them.
> Discard it and check yourself through experiential practice and logical exercise.
Discard what? I have said elsewhere in this thread that I am a lapsed Buddhist. I hold no religious dogmas. It's not me that considers buddha-nature teachings to be heretical.
And what are "experiential practice" and "logical exercise"? These sound like some kind of private jargon you are using to support your "rather-rational" approach.
I mean you don't have to agree to dogmatic and mystical parts of what a practitioner teaches to still consider and use some techniques and/or philosophical ideas you can also find in their teachings.
Experiential practice is when you do something and experience the result. Rub your hands and feel warmth appear - this is an experiential practice of experiencing warmth in your hands. Meditating a certain way you can experience a particular state of mind. This is important because some things are either impossible or useless to describe - you have to experience them and a particular practice may trigger the experience.
Logical exercise is when you exercise logic and come to conclusions.
