Apathy is the most insidious of evil. If its influence remains unchecked you may lose yourself, and not even realize what you have lost. This card is a strong warning that you must break out of your current cycles. Seek out causes or people to care and fight for. Make new goals, and then seek out new paths to reach them. Now is the time to take risks, as the price of failure is far less than the cost of no longer seeking success.
To get the full traditional meaning and interpreation of Four Of Cups, I suggest you visit Trusted Tarot and their Four Of Cups page.