Q. 1. What does "same sex marriage" mean?
A. 1. In July, 2003, Canada, the third country in the world to do so, has recognized "same sex marriage" as "a legal union between two persons of the same gender."
Q. 2. But how can two persons of the same sex get married when they cannot be husband and wife?
A. 2. While two persons of the same gender cannot become husband and wife, homosexuals and lesbians have been challenging the laws of their respective countries in order to obtain the status of marriage in their relationships, some even seeking the right to have their marriages blessed within the Church.
Q. 3. What is the position of the Catholic Church on this matter??
A. 3. The Catholic Church will never recognize, nor bless, same sex marriage.
Q. 4. Why is that?
A. 4. There are a number of reasons, some being:
4.1. As defined in the Webster's New World Dictionary, since the beginning of time, being "married" has been defined as "A. being husband and wife B. having a husband or wife."
4.2. The Catechism of the Catholic Church teaches that a marriage is a union between a man and a woman, not a man and a man, nor a woman and a woman. "The two parties to a marriage covenant are a baptized man and woman." (C.C.C. # 1625)
The Catholic Church further teaches that "Each of the two sexes is an image of the power and tenderness of God, with equal dignity though in a different way. The union of man and woman in marriage is a way of imitating in the flesh the Creator's generosity and fecundity: 'Therefore a man leaves his father and his mother and cleaves to his wife, and they become one flesh.' [Gen 2:24] All human generations proceed from this union." [Cf. Gen 4:1-2, 25-26; 5:1]  (C.C.C. # 2335)
"The spouses' union achieves the twofold end of marriage: the good of the spouses themselves and the transmission of life. These two meanings or values of marriage cannot be separated without altering the couple's spiritual life and compromising the goods of marriage and the future of the family. The conjugal love of man and woman thus stands under the twofold obligation of fidelity and fecundity." (C.C.C. # 2363)
Also, regarding the gender of the spouses, the Canon Law of the Catholic Church states, "The marriage covenant, by which a man and a woman establish between themselves a partnership of their whole life,..." [Can. 1055 §1]
4.3. Furthermore, on the subject of homosexuality, the Catechism of the Catholic Church states:
"Homosexuality refers to relations between men or between women who experience an exclusive or predominant sexual attraction toward persons of the same sex. It has taken a great variety of forms through the centuries and in different cultures. Its psychological genesis remains largely unexplained. Basing itself on Sacred Scripture, which presents homosexual acts as acts of grave depravity, [Cf. Gen 191-29; Rom 124-27; 1 Cor 6:10; 1 Tim 1:10] tradition has always declared that "homosexual acts are intrinsically disordered." [CDF, Persona humana 8] They are contrary to the natural law. They close the sexual act to the gift of life. They do not proceed from a genuine affective and sexual complementarity. Under no circumstances can they be approved."  (C.C.C. # 2357)
"The number of men and women who have deep-seated homosexual tendencies is not negligible. This inclination, which is objectively disordered, constitutes for most of them a trial. They must be accepted with respect, compassion, and sensitivity. Every sign of unjust discrimination in their regard should be avoided. These persons are called to fulfill God's will in their lives and, if they are Christians, to unite to the sacrifice of the Lord's Cross the difficulties they may encounter from their condition." (C.C.C. # 2258)
"Homosexual persons are called to chastity. By the virtues of self-mastery that teach them inner freedom, at times by the support of disinterested friendship, by prayer and sacramental grace, they can and should gradually and resolutely approach Christian perfection."  (C.C.C. # 2259)
4.4. The Catholic Church perceive marriage as a Sacrament of Holy Matrimony. Same sex marriage does not fall within this definition. Why?
4.4.A. Because homosexual acts are intrinsically disordered.
4.4.B. Same sex marriage falls short of meeting the basic requirement set by Jesus regarding the marriage of two spouses. "They are no longer two, but one flesh." [Mt 19:6; cf. Gen 2:24]
4.4.C. Same sex marriages is not equal to the Sacrament of holy matrimony as defined by God and His Church that represents Him on earth. It validity would be equal to marriage before a Justice of the Peace. Same sex marriage can never be a Sacrament, nor be considered as a holy union, nor be blessed by the Catholic Church.
4.4.D. During the marriage ceremony,
"The various liturgies abound in prayers of blessing and epiclesis asking God's grace and blessing on the new couple, especially the bride."  (C.C.C. # 1624)