My wife is currently pregnancy and it was for her prayer. She will be able to bear children without any difficulty on this prayer. It is a one of custom of Japan.
Our Japanese people is counted a day and year on the twelve signs of the oriental zodiac.
Yesterday, 25th May was a dog day which is as one of this zodiac and dog is the symbol for to be safely delivered of a baby.
So, we went to there yesterday and got the prayer.