“And so do we too offer gold to the newborn king if we shine in his sight with the brightness of the wisdom from on high. We too offer him incense if we enkindle on the altar of our hearts the thoughts of our human minds by our holy pursuit of prayer, so as to give forth a sweet smell to God by our heavenly desire. And we offer him myrrh if we mortify the vices of our bodies by our self-denial.”
(St Gregory the Great,  ‘Forty Gospel Homilies)