Re: "pleasure tolerance"
well...my view is people can feel that the idea is a *negative one* and recoil, (which it could be said is itself a kind of contraction into the negative) or not.
John Wellwood, a psychologist (I'm remembering from years ago)called it a ceiling, this ceiling that one imposes according to conditioning and all sorts of factors, most of which are about putting limits on what's possible. It's all very well to insist that everything be "downstream" but the facts for many people are that it's not so easy to think themselves into a higher vibration, without actually feeling a spiritual connection free-flowing between themselves and a Divine *God* presence. I think it is a perfectly good thing for people to consider: that they might actually harbor a subconscious 'ceiling'. It explains a lot of the sort of spoiling of happiness that can happen between couples where people often will say "just when everything was so perfect", when they were vibrating at what felt like a divine rate. Maybe the missing piece was a certain Grace that one allows to 'descend' so to speak. One can't always be pushing with the will toward the good. That's where a Divine allowing (and humility) comes in.
It's a curious thing that a lot of people see humility as some sort of passivity that they feel is at odds with (what I see as a common wish for) a constant buzzing *high*. I think it's a valid consideration (without wallowing in it) that the ceiling motif might be present, when we don't feel a genuine flow from Source to our hearts.
In some subtle ways you have to be willing to be emptied to be filled, and to dissolve all ceilings. this 'emptiness' I'm talking about is probably more accurately thought of as being purely 'of' the moment. Letting go (of forever envisioning and desiring) and letting God.