... the Chinese character for 'crisis' is comprised of two sub-characters: one that spells 'danger' and another that spells 'opportunity' [or 'crucial point', which I've heard is a better translation of the sub-character]. I guess that even the ancient Chinese knew that there is a bright side to the darkest circumstance - if you have the courage to look for it. - Sharma, Robin S., The Monk Who Sold His Ferrari, p. 46

Again, the idea that attitude determines what becomes of a difficult circumstance. Crises happen; their occurrence is beyond your control. What is within your control is whether you allow a crisis to derail you from your track or whether you make it a switch, allowing you to move from one track to another. I would say the deciding factor is your openness to shifting perspective from the present hindrance to future gain, from what you lost as a result of the crisis to a consideration of what new possibilities are now available to you as you overcome the crisis, learning and growing all the while.