Most of the time, it isn’t enough to just regret something. That tend to end up vague, and although well-intentioned, doesn’t have much power in our lives. But when we clearly state it out loud, then, somehow, it has much more power to affect us. Likewise, clearly stating a positive intention, and then letting that sink down within, has much more power than just vaguely wishing things were different.
I personally don’t see the “why” behind this. I can speculate, but I’d get a bit far out ahead of my own practice and experience, and don’t want to accidently mislead someone. Instead, let me say that I just sense the effect. I put ‘A’ into the machine, and then ‘C’ comes out.” I can only guess what ‘B’ might be, but in a way, I don’t need to know. If I reliably know that if I start with ‘A’, I’ll end up with ‘C’, then that’s enough to go with.
The best analogy I can come up with is sitting at a table with someone else and being thirsty. I can sit there all evening, wishing someone would give me some more water (and likely go thirsty all evening!), or I can just say out loud, “could I have some more water?” Once I do that, the people around me, the energy around me responds.
Repenting of the Ten Evil Actions
I now deeply repent of having killed.
I now deeply repent of having stolen.
I now deeply repent of sexually improper thoughts and behavior.
I now deeply repent of having lied.
I now deeply repent of having spoken manipulating words.
Wake Up and Laugh! 
You can also ask inwardly, you can ask that water through Juingong, it will connect to that person, and the water will be brought to you without saying a word. Also three things we use – body, speech and mind, in practice we need to use three of these, so saying in words makes it connected better. I think
On the picture there are three bells, the third bell seems to be more like Tibetan bell, with vajra. Vajra and bell , for me personally it is a symbol of JuinGong. I would like to know what is your explanation of symbolism of each of these these bells
In Korea, there’s no special symbolism to the hand bells. They’re just pretty and sometimes mildly symbolic decoration. The Vajra design is of course a deliberate use of that image, and the other ones there are done in a design that apears to be inspired by the top piece of some old monk’s staffs. The one in the foreground (that’s out of focus of course, lol) is by far the oldest one there. The other two are much newer, almost certainly made in the last 20 years. (Older bells don’t have designs like those.) I have a hand bell I use for practicing ceremonies, and it’s much, much simpler design and cruder manufacture, but is also probably from the 1960’s or 70s. But it has a lovely sound.
* these three