Permaculture looks at the interrelationships in your garden. It helps to create a garden that mimics a natural ecosystem. In such a system the needs of one part of the garden are satisfied by the outputs of another part of the garden. For example, a compost pile needs water and gives off warmth. Germinating seeds need warmth and drip off excess water. By placing a germination table over the compost pile the pile can warm the seeds and the seeds can water the compost.