In these days, engage your inner self with a longing for the arrival of the Holy Spirit, and during Easter and thereafter, for his constant presence; and be careful and value this so much that nothing else may interest you, and pay no attention to anything else, whether it be suffering or other intrusive memories; and experience all these days with love for the Holy Spirit and with what a person owes to peace and tranquility of soul, in which he delights to dwell.
(John of the Cross, correspondence, undated letter to a Carmelite)
