Nevertheless you'll see something in common in these
contemplative paths. They are all in pursuit of Truth and have no
room for violence and conflict. 
I remember Ajahn Brahmavamso said, why when we look into all these
contemplative traditions like Christian Mystics, the Taoists, they
are so peaceful unlike those fully academic persons?
Because people dwell dogmatically on theory and academic
understanding, they cling to what they believe to
be truth in exclusion to all others, instead of undergoing an
intense inward journey of self-realisation and finding out for
themselves, - and this is why hatred arises. On the other hand the
path of contemplation is to "look within".
No fanaticism
Of Buddhism alone can it be affirmed it is free from all
fanaticism. Its aim being to produce in every man a thorough
internal transforming by self-conquest, how can it have recourse to
might or money or even persuasion for effecting conversion? The
Buddha has only shown the way to salvation, and it is left to each
individual to decide for himself if he would follow it.
- Prof. Lakshmi Narasu, "The Essence of Buddhism"
But this goes to all contemplative traditions in our world,
though are uncommon/rare
