I think it's because most are not aware that the deep mind is a reality and available. Experience is naturally perceived as separate, and to consider that you're experiencing your reflection in another form is almost nearly out of the question, mostly due to emotional response. It's more comfortable for the mind to reject experience, as there is a hesitation and an unwillingness to give as described in the Transformation of Mind.
So to successfully perceive catalyst requires abandoning the process in which the mind normally functions, which will certainly be difficult. Hell I've been on the inner-path my whole life and I don't think I truly got it until last year. I achieved a lot of insight over the past 10 years alone and made great progress, but it wasn't until last year that I was able to truly see the quickness and sharpness of mind at work at the deepest of levels. And it was only possible with painful catalyst, and putting a lot of effort into understanding it.
So to successfully perceive catalyst requires abandoning the process in which the mind normally functions, which will certainly be difficult. Hell I've been on the inner-path my whole life and I don't think I truly got it until last year. I achieved a lot of insight over the past 10 years alone and made great progress, but it wasn't until last year that I was able to truly see the quickness and sharpness of mind at work at the deepest of levels. And it was only possible with painful catalyst, and putting a lot of effort into understanding it.