I'm in front of a locked gate, and to continue I have to compulsorily go this way. I have to figure out the code, but it seems impossible. I can't give up. I retry one more time, study the design on the keypad, try and try again. That's what constancy is: never give up, even when there seems to be no other way out. Only those who persist make it through, and I want to get to the end.