Don't ignore the rituals of whatever society you are living in.

But you've got an enormous subject there. Depending how you define it, most social human activity can be expressed as being some kind of ritual.

To structure what you're lookinmg for it might be best to structure it - either the various ceremonial rituals in a particular society, or comparing how a few different societies organise the rituals round some significant event like birth or death or becoming an adult.