The number four in the minor Arcana of the tarot suggests structure, balance, order.

It can show to us how we construct our lives, and where we put or even misplace our energies too.

For instance, in the DruidCraft tarot the four of pentacles shows a an artisan-like man kneels in front of a a cupboard. This cupboard has four panels or sections to it. On each of the panels is a red and gold pentacle.

The artisan has a key and is opening - or locking - the cupboard. The shape of the key reminds us of other Celtic and Norse symbols. Using the key requires deliberation. It's not something - in this tarot card - that one can do easily, nonchalantly. The figure has to kneel down.