The difference between being in the ascendant and being in the ascendant

The difference between being in the ascendant and being in the ascendant is as follows:

In full swing: an activity reaches its peak at a certain moment, which may be short-term or instantaneous.

In the ascendant: things are on the rise, not yet at the peak stage, with good momentum and promising future prospects, but it does not mean that the future will be strong.

Tea: thatched white flowers. Red as fire and white as tea.

Party: Immediately; Xing: beginning, starting; Ai: Stop, it's over.