How would you say 'is that the only way you look at life' in Japanese?

This is commonly expressed by simply saying 'kakko ii.'

"Kido" Do means "The Way", Ki means "Life giving energy" or power. Another translation of power is "Chikara" You would say something like this, "Kido" or "Chikarado"

You can simply say 'jinsei wa tada no yume desu' [lit : Life is just a dream]. If you want it more precise (as in with more emphasis on but) you could say 'jinsei wa hon no yume ni suginai' [lit :...

'Nande anata/omae dake'