The essence of spirituality and the relationship of Christian spirituality with the spirituality of other great Asian religions July 31-August 4, 2001, IFRS Audio-Visual Room, Teresa of Avila building ; Elements of Filipino spirituality : July 29-July 31, 2002, Thomas Aquinas Research Complex, University of Sto. Tomas - Gerlock, Edward (Lecture series on spirituality, 2003)