A commitment ceremony is not a legal marriage but it is a ceremony to express your love and commitment to your soul mate. This ceremony is a sincere exchange of vows between two people and can be shared by your family and friends in the same way as a Marriage.
I am obliged legally to include this statement from the Attorney General’s office:
Same-sex commitment ceremony
Subsection 5(1) of the Marriage Act 1961 defines marriage as ‘…the union of a man and a woman to the exclusion of all others, voluntarily entered into for life.’ Accordingly, it is not possible for same-sex couples to marry under Australian law and same-sex marriages entered into under the laws of another country are also not recognised in Australia.
*It is not illegal to conduct a commitment ceremony for same-sex couples, though, provided that ceremony does not purport to be a legal marriage.