Sacred reality is that thing which is the source of a person's values. It is the thing which a person's creed orients around and is generated from. God, Moksha, Jesus, spirits, Nirvana, the Kalachakra Mandala, freedom, happiness, one's own culture, ancestors; sacred reality is what you seek to have or to correctly relate yourself to.

edit: money, death, the law, honor, salvation, truth, Ahura Mazda, nature (or various aspects of it), the past, the future, the present, Kali, Shiva, Vishnu, Brahma, Buddha, Saraswati, Parvati, one's self, a specific place (a mountain, a building, a forest, a river, anything), the cosmos as you see them, the saints, a certain group of people (family, friends, a cult, a congregation, a corporation, a nation, the entire race)... it is the thing which you, knowingly or not, pursue in all your endeavors.