marrage is the spiritual joining of 2 souls as one

The youngest brother and his wife remain abstinent until marriage.

Floyd Van Keuren has written:

'Christian marriage' -- subject(s): Marriage

'The open door' -- subject(s): Protected DAISY

'Outfitting for spiritual marriage' -- subject(s): Marriage

'The game of living' -- subject(s): Conduct of life

There is no official teaching on this in Buddhism, although many liberal Buddhists support it. The fact is that Buddhism focuses on the individual's spirituality and does not consider marriage to be a spiritual issue.

Buddhist consider marriage to be a 'secular' affair, not a spiritual one. As such, there are no 'Buddhist' ceremonies in regards to marriage, leaving it to the faithful to engage in whatever they find appropriate, though many Buddhist may seek to have their union blessed by a Monk.