The most ideal upward trend is a fluctuating rise.
Bitcoin has fluctuated and risen from over 80,000 in mid-April to around 120,000 now, with the entire process being a gradual rise (the market is slowly moving higher amidst hesitation).
This way of rising will continuously suppress emotions, so even if the price increases by 50%, there are still many people hesitating and afraid to enter the market, and the sentiment indicators remain between neutral and greed.
Once a sudden surge occurs, retail investors will panic and rush in, and extreme greed often signals a peak.