Jhananda:
At that time I worked in a canning factory, where I had to wear hearing protect all day long. Almost all other hearing protection equipment would result in an ear infection for me, from habitual use, except these foam cylinders. They are very inexpensive, and they can also be used in conjunction with another hearing protection device for additional sound attenuation.
I've tried several types of foam ear plugs, similar to the ones you describe, and some are better than others. I can wear my shooters ear protectors for one hour without any discomfort at all; the longest I've worn them was about 3 hours with some degree of discomfort. In my opinion, they're much more comfortable than earplugs, and I'm convinced they're more effective at reducing sound levels. They are good for completely eliminating or significantly reducing sounds like people next door talking, music, air conditioning, refridgerators and furnaces. They are less effective with cupboards banging, dogs barking, lawn mowers, weed wackers, and very low frequency sounds. And like you, I sometimes use them together with foam earplugs for additional attenuation. This is very effective, and especially so when my immediate neighbours are partying - I can't hear them at all.
Jhananda:
When you become a Stream Winner, then the charisms (jhana-nimitta) become easy to come by. Since you find them easy now to find, then you must be a Stream Winner. The Stream is the charisms.
I'm not sure if I'm a Stream Winner? One has to eliminate the 1st three fetters: belief in a self, doubt, and attachment to rites and rituals.
As for belief in a self, intellectually I understand that there is no real self, we are just a composite of our ever changing aggregates.
As for doubt, sometimes I'm not sure what to believe regarding the teachings of the Buddha -- what if the Buddha and Ananda were deluded, and got it all wrong, and therefore it's all a big fairy tale, the Pali Canon is all nonsense; or maybe the suttas have been misrepresented. That's what goes on in my mind sometimes, that's what keeps me questioning everything. On the other hand, my gut intuition tells me that there's something here, some kind of universal, timeless, ancient truth, beautiful and full of awe. It is my quest to find out. It's the big adventure, maybe I'm Don Quixote's reincarnation. I am, however, especially recently, gaining faith and confidence in the eightfold path; it seems so beautifully logical.
As for rites and rituals, I've got that one nailed -- I put my statue of the Buddha in the closet a long time ago; and the sight of somebody doing 108 prostrations before a Buddha statue gives me a headache.
I've read somewhere in the suttas, if I recall correctly, that the four levels of attainment (Stream-enterer, Once-returner, Non-returner and Arahant) correlate directly to the first four levels of jhana. Is this the case?
Jhananda:
There I found it so quiet that I could even hear my heart. I used the sound of my heart as a meditation object instead of the breath. That week it was very effective to get me well established in the charismatic sound. From then on the charismatic sound has been with me continuously.
Every time I use the heartbeat as my m/o blissful sensations arise. When this occurs I switch to the blissful sensations as my new m/o. But usually the blissful sensations stay around only for a couple of minutes until subsiding, then I go back to the heartbeat as my m/o. So, I keep going through this cycle over and over again. Its' like a balloon composed of bliss inflating and deflating in my head. Sometimes by letting go and placing my attention on the bliss, it keeps going for 5 to 10 minutes maximum. Sounds like I need to practice. I don't think I've attained Stream Enterer level yet.