The big cover on the top indicates a house,
Under the cover is a woman (Post 20)
which may be wife or girlfriend, or mother. A man who has a home with wife or mother inside, he feels peaceful, calm, and secure. So this character represent the feeling of peace, stable, secure, calm, quiet, etc.
It shows how important the woman is to the man. It is an ideogram character.
Its big seal script is
Its small seal script is
similar to the shell bone script.
Its clerical script is
still a woman under a cover, but the cover is much smaller, even can't cover the woman underneath because the clerical script emphysizes the long horizontal line.
Its current standard printing script for traditional or simplified script is
same as the clerical script.
Its Pinyin is "An1".