Madonna: Moms Post the Darndest Things

Madonna's crying out to Rocco again ... posting a pic from happier days.

Madge put up the photo of Rocco grinning with dandelions around his neck and said, "I miss this boy so full of life so full of love!"

She and Guy Ritchie are set to face off in court next month in their custody battle over Rocco ... who's living with Dad in England, for now. Madonna's been reaching out by posting pics with messages for her son.