How to understand CROSSFILTER

Hello

I have never worked with Power BI earlier.

I have this Dax code below where HistoryFact_Booking is the many side and Dim_Calendar_ArrivalDate is the one side.

Can somebody help me to understand this,

CALCULATE(max(Dim_Calendar_ArrivalDate[Date]),
    CROSSFILTER(HistoryFact_Booking[Dim_CalendarArrivalDate_SK],
    Dim_Calendar_ArrivalDate[Dim_Calendar_SK], None))

Many Thanks in advance