Use Fill-Lighting to contrast your brightly-lit, spot-lighted, accent-lighted, spot-lighted areas. with dimly-lit areas for balance.
"combine bright focal glow with others areas of dim ambient luminescence, or even with darkness"
Fill-Lighting provides the dimly-lit backdrop for the brighter garden focal points.
Ideally, it is accomplished as excess light from these focal points spill out into the surrounding area.
The ratio of focal areas to fill areas should be about 10:1.
Low wattage area lights such as path lights can provide fill light by dimly lighting the floor of the garden.
To stand out strongly, the lighting in the focal areas should be about ten times as bright as the surrounding Fill-Ligh.