An address by the Minister, Rev. Rob MacPherson recorded on Sunday, 20th May, 2018 in the Unitarian Meeting House in Adelaide. In the context of Pentecost Sunday and the "tongues - as of fire" it inspired amongst the disciples, Rob reflects on the opportunity costs and benefits of preparing a sermon and invites - even challenges - members of the congregation to reflect on their unique life-experiences and the wisdoms they might offer our Unitarian community.