Faith is not the exclusive domain of religions other than Buddhism.
Vajrayana approach is to use the most efficacious methods for an individual or group to bring about results even if it means encouraging blind faith.
Is what we called blind faith useful?
We tend to associate blind faith with other religions. The practice of Guru Devotion to a certain extent depends on some level of blind faith. This seems to be a departure from popular and traditional Buddhist norms which emphasize on valid reasoning and logic.
I was thinking about this topic myself, and decided to type in 'faith' in the search bar... this post came up haha...
With question comes curiosity... and with curiosity as usual I did some research and read up on several articles surrounding the application of faith in Buddhism. One of the articles I read gave a very meaningful quote that is probably very familiar to many diligent practitioners... it goes like this:
"Faith without wisdom will develop ignorance,
wisdom without faith will develop a perverted view."
I felt this quote is very important and a teaching by itself... it is one that all serious practitioners need to remind themselves as it is after all very easy to stray from dedication to blind faith.
Having blind faith in the Three Jewels certainly will not take us anywhere, though there may be some benefits, but not enough to take us to our ultimate goal of developing Boddhichitta, Enlightenment. The integration of both wisdom in the teachings and faith is most important in developing our spirituality.
Buddhists develop faith in a very different way compared to many other religions. Through contemplation, investigation and application, we develop the understanding that the Dharma truly is liberation. Because of such understanding, we develop much faith in the Buddhas, that their teaching can help us progress spiritualy... and the teachings that we do not understand, we place faith that just like all the other teachings we understood and found truth in it, so does the ones we don't understand... and carry on with our spiritual journey as we will reach to a point when all that is unclear will be understood.
When we talk about blind faith, i'm guessing that it's about ppl that think in the context of "The Buddha is all mighty and He will liberate me" kind of faith. If that is so, then sorry to say... all those with blind faith in the Buddha is just plain lazy and ignorant. Because if the Buddha can liberate us, we all would be enlightened already... but that's not the case, which means only we can help ourselves to reach enlightenment... something that Buddha cannot give but can teach.