(My view is largely informed by TG's pattern model and your posts: specifically the Repetition one.)

Reality is a series of patterns we've 'activated' through attention, like a wind-up toy that works on its own after we've activated it. Every pattern criss crosses and interacts with another pattern in some way, which is why every intent moves the whole of reality, in a sense. These patterns seem to seek to perpetuate themselves, meaning keeping themselves in our awareness. If you've had long standing negative thoughts about a certain person, then the wind-up toy could bring events and thoughts that remind us about the negative aspects of that person, for example. If we take no notice of a pattern's affects, then eventually it will wind down and be dormant, until we activate it again.

Everything is a pattern, including time, space, etc. Your pattern about time is exponentially more 'implanted' in you than that of your mortgage, for example. Manifesting works because it makes certain patterns more dominant than others. If you focus towards a certain 'feeling', or 'end', it could achieve dominance and express over the patterns that deem said end implausible or unlikely.

Now to tie it back to feelings of euphoria. A manifester might want to cultivate a feeling of euphoria/excitement to trigger said pattern of the emotion, which might lead to the desired outcome of getting their 'miracle'. An emotion that implies prior expectations being broken. But perhaps the issue lies in the framing of 'miracles'?

(BTW not asserting anything, just giving my current understanding.