When joy or happiness is shared it is doubled; when sorrow or sadness is shared it is halved. The joy of Elizabeth and Mary on their respective vocations is shared by the other and hence, both experience a doubling of their joy. This joy is experienced by even the child in Elizabeth’s womb, because it is a genuine joy felt by its mother.
Life is too short to cry or be sad. Life is too short not to be happy or not to share in the joy of others.