Maximilian Kolbe's insights into the Immaculate Conception of Mary are truly profound. His Marian spirituality is what we must imitate in these end times since he understood that the primary battle is spiritual and we are approaching the zenith in the struggle between good and evil. With Mary we will be victorious. The following reflection is well worth reading over Lent https://www.catholicculture.org/culture/library/view.cfm?recnum=6547