Each player adds one Abbot of their color which can be placed on the
garden symbols that appear on 8 of the Basic Game's 72 tiles plus 1
River tile.
When placing a tile with a garden, you must place it so that it its edges
match the edges of tiles already in play.
When placing a tile with a monastery or garden, you may place your abbot
onto the monastery or onto the garden. You may, of course, place a regular
meeple onto the monastery, or other features, such as roads, etc. You
MAY NOT place a regular meeple onto the garden.
When the monastery or garden occupied by your Abbot is surrounded by eight
tiles, you score 9 points (just like a regular monastery scoring).
On your turn, even if all eight surrounding tiles have not been placed yet,
if you do not place a meeple during your 2. Placing
a meeple phase, you may instead return your already-placed Abbot to
your supply. If you do so, you score immediately as many points as the
garden or monastery your Abbot occupied is worth at that time, exactly like
how monasteries are scored during the final scoring.
The field symbol also exists in some of the tiles in other expansions!