To join two things together there must be nothing between them or there cannot be a perfect fusion. Now realize that this is how God wants our soul to be, without any selfish love of ourselves or of others in between, just as God loves us without anything in between.
St. Catherine of SienaWhoever loves himself or the world inordinately becomes incompatible with himself.
St. Catherine of SienaNo one should judge that he has greater perfection because he performs great penances and gives himself in excess to the staying of the body than he who does less, inasmuch as neither virtue nor merit consists therein; for otherwise he would be an evil case, who for some legitimate reason was unable to do actual penance. Merit consists in the virtue of love alone, flavored with the light of true discretion without which the soul is worth nothing.
St. Catherine of Siena