A bull market is a market where assets are rising in value. Conversely, when assets are falling in value, such a market is called a bear market. The term "bullish" comes from the analogy that a bull beats its horns from the bottom up, and the term "bearish" comes from the analogy that a bear beats its paw from the top down.
I believe this explains better than many including myself would try to do, but nonetheless I would try use my own term from my own perspective to say what I have.
Supposing I have been accumulating some BTC for more than five years by using the DCA strategy of investment, it would be normal and required that I follow up on the latest updates and happenings in the crypto currency world to stay abreast with the market seasons of which prices rise or fall and get to an ATH. Such seasons may be occasioned by whale investors movements or market speculation, but it is the Bitcoin trader, Bitcoin enthusiast or those who trade forex that would clearly understand the market situation.
We thankGod though for the innovation of bots that help traders make good profit from trading cryptocurrency these days, and now, it would be left for the halving event as one of the major events to happen for Bitcoin to enter the bull season again and get to an ATH than before.
Those like myself in the analogy, who have accumulated much BTC for like five years, can now sell and take profit or sell some more, take profit, buy more btc and diversify the rest of my asset portfolio as part of an investment for the future.