Easy times attracts easiness and tough times attracts dragons. A dragon is already quite a handful but when you see more then one converging towards you. Good luck.
There is always a treasure that a dragon is guarding and they will be aggressively protecting it. So in seeing that the dragons are converging towards you, you must be near the treasure that they are guarding. For one to see converging dragons, one must be on a path towards a great treasure. When one is ready for the quest, one will see it.
To be able to slay the dragons means you have overcome your fear of it and gain the courage on your treasure.
To be defeated by the dragons means that one is still not ready for the treasure yet.