Doing some research on flowers, I found this: “The Marigold is emblematical of pain; place it on the head and it signifies trouble of mind; on the heart, the pangs of love; on the bosom, the disgusts of ennui.”
How the heart is differentiated from the bosom is nothing I can figure out. Is it left breast = heart, right breast= bosom? For help I went to the dictionary, which didn’t help.
But look here!
• (the bosom of) the loving care and protection of: Bruno went home each night to the bosom of his family | the town has taken the gay community to its bosom.
I hope not literally.