This card means nothing. Though it might occur to some that this card could be identified with The Fool in the traditional tarot deck, the "Who Am I?" card actually corresponds to The Fool.
The full meaning of the hole (whole) card is empty. The nothingness concept of Zen Buddhism or existentialism might be appropriate here. In various schools of thought there is almost an infinite variety of nothingness.
If anything, the card might symbolize the sun.
The Morgan's Tarot (c)1970, 1983 by U.S. Games Systems, Inc.
HTML Implementation (c)1998, Lookit the Cat Productions

Illustrations and Text from Morgan's Tarot Deck reproduced by permission of U.S. Games Systems
Further reproduction prohibited.

Morgan Morgan's Tarot
spiritual ascendence in hypertext format.

Root Sleepbot Constructs