The icon of this design principle, a vegetable with a bite out of it, shows us that there is an element of competition in obtaining a yield, whilst the proverb “You can’t work on an empty stomach” reminds us that we must get immediate rewards to sustain us. This is about cashflow. And there is a feedback element to this - how systems grow and expand.
Examples—Obtain a yield
Built—Design for yield - Permaculture farm-stay - profit to support other activities
Biological—Harvesting blackberries while walking
Behavioural—Thinking about how to achieve a yield
Reference: Holmgren, D. Permaculture Principles & Pathways beyond Sustainability