Mask
"In case of cabin depressurization, an oxygen mask will fall from the ceiling. Please put on your mask first before attempting to help others, including children." The flight attendant always tell us before take off. I used to think that's selfish. You must surely help others first. But as I think of it, it appears as a metaphor for life. If I am helpless, I cannot help anyone, and it's even selfish of me, because I will in turn need help from others. I must put on my oxygen mask first, then I can help all around me..and that is not a bad thing.