5 Let her very dress and garb remind her to Whom she is promised. Do not pierce her ears or paint her face consecrated to Christ with white lead or rouge. Do not hang gold or pearls about her neck or load her head with jewels, or by reddening her hair make it suggest the fires of gehenna. Let her pearls be of another kind and such that she may sell them hereafter and buy in their place the pearl that is “of great price.” In days gone by a lady of rank, Prætextata by name, at the bidding of her husband Hymettius, the uncle of Eustochium, altered that virgin's dress and appearance and arranged her neglected hair after the manner of the world, desiring to overcome the resolution of the virgin herself and the expressed wishes of her mother.
But lo in the same night it befell her that an angel came to her in her dreams. With terrible looks he menaced punishment and broke silence with these words, 'Have you presumed to put your husband's commands before those of Christ? Have you presumed to lay sacrilegious hands upon the head of one who is God's virgin? Those hands shall immediately wither that you may know by torment what you have done, and at the end of five months you shall be carried off to hell. And farther, if you persist still in your wickedness, you shall be bereaved both of your husband and of your children.'
All of which came to pass in due time, a speedy death marking the penitence too long delayed of the unhappy woman. So terribly does Christ punish those who violate His temple, and so jealously does He defend His precious jewels. I have related this story here not from any desire to exult over the misfortunes of the unhappy, but to warn you that you must with much fear and carefulness keep the vow which you have made to God.
Source: Letters (New Advent)