DCA

I have recently been starting to do more research and understand the Bitcoin 4 year cycles. As someone who is starting to DCA per month into Bitcoin after buying lump sums ever so often, for anybody that has experience with buying Bitcoin I know it makes sense to buy the dips in large amounts or DCA a fixed amount but can anyone explain why it would be a better idea to continue to DCA into Bitcoin as the price is going up and possibly approaching or exceeding ATHs rather than taking some kind of profit at ATHs? I’ve thought about experimenting with taking profits at ATHs just to say I did but I am a HODLr so it is definitely just a thought.