I think you have some confusion about what these terms means, and hence why you mistakenly view these as being "stuck".
First, let's address your using the word "detachment" to describe what is better stated as "non-attachment". Detachment carries the meaning from psychology of "a psychological condition in which a person is not able to fully engage with their feelings or the feelings of others." This is considered to be a dysfunction, and not something one should desire as a quality.
"Non-attachment", on the other hand, which is something Buddhism speaks of, has more to do with not clinging to experiences which have meaning to us. While we may be fully engaged emotionally with someone or something in life, the goal is to hold these with an open hand, and not trying to hold onto and preserve them as the source of happiness in our lives. It basically means getting
unstuck. Getting stuck is what we do when we cling to events or feelings as the source of our happiness.
The image I like to see this principle of non-attachment, or non-clinging, or non-grasping to, is that of a bird landing on the palm of your hand. That experience can bring great joy as you see its beauty and participate in it as it perches in your hand. But the second you try to seize it for yourself, to clutch it with your first, to grasp it and hold on to it, you destroy its natural beauty and the gift it was giving to you, by imposing your own will and desires upon it. "Mine!", is the opposite of principle of non-attachment, which simply allows the world to simply "be", which we get to fully participate and receive from as we allow it.
Letting go, allowing, let it be, and so forth are all just saying that exact same thing. This is a positive, spiritually liberating practice, whose ultimate goal is to simply be "present in the moment".
Now you may have some aversion to this because it sounds "Buddhist", or something, and hence why you dismiss these as you seem to interpret these as negatives. But these are found in Christianity as well in the teachings of Jesus and elsewhere. "Consider the lilies of the field..." behold their beauty, contemplate them, be present with them in the moment, and see their glory, greater than all the great human acheivements. Particpate in their Beauty, and see God. And then add to this, "take no thought for tomorrow" - be present in the moment, set your thoughts on things above, see the Beauty from God before you, don't cling to it and try to preserve it for yourself tomorrow to find your happiness, and so forth.
If you look deeply enough into your Christian faith, you should see these exact same principles in there, just worded differently. Don't worry about tomorrow, see the Beauty in the present moment, don't cling, "those who seek to preserve their lives shall lose them", compare with the Buddhist teaching, "clinging creates suffering".
I could say considerably more to this, should you wish to discuss this with me.
I don't think you have, actually. Maybe in how you misunderstood and misunderstand what those mean, perhaps, but that would not reflect my understanding of them, let alone practicing these spiritual principles which yield great spiritual fruit.
I would be curious how you have understood these in your past, and what you really think they mean.
Be careful about pronouncing judgements on others when you really don't know anything about who I am. Who I am is anything but stuck anymore.
The metaphor I uses is to simple fall back into the Ocean, or "God". It's interesting you use the term fire. By that do you mean simply to fall into trust, and let it burn off the ego, through that process of "letting go"? Or do you mean something more sinister?
Sounds like "letting go" to me. Again, it would be interesting to hear how you have interpreted what these things mean in your past, which you are carrying forward with you in what I hear as a misunderstanding of them.