The feast of the Presentation of the Lord is also the feast of Mary's Purification. However, Mary had no need of purification because the Child was born in a miraculous manner and without any labor pains - but he came into the world like light passing through glass.
We consider the Law of Moses regarding the purification of the mother after childbirth and the ritual sacrifices offered for the child. Mary and Jesus were exempted from all of these, but in submitting to the Law, the Law was fulfilled in them and so passed away.
Further, the perpetual virginity of Mary (specifically, that she had no other children) is highlighted when we consider that Simeon was perfectly fulfilled when he saw the Lord, and so also Mary's virginity shows us that Jesus satisfies all our desires and nothing else and no one else is needed.
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