Lyrics cat stevens " tea for the tillerman"?

what do thelyrics in the song " tea for the tillerman" mean by cat stevens?

Bring tea for the Tillerman
Steak for the son
Wine for the woman who made the rain come
Seagulls sing your hearts away
'Cause while the sinners sin, the children play

Oh Lord how they play and play
For that happy day, for that happy day

It's typical Cat Stephens. Pretty song but who really cares what the words mean.

I used to listen to his music before he became Yussaf Islam.