I believe it would be hearing and touch.
sighing you'd hear & trembling is touch
An outline provides the key words or the important details in a text which basically helps the readers focus and analyze more what the text is trying to convey.
The answer is the difficulty of determining what is real. Typical modernists had a loss of meaning in the modern world, so there themes included the question of "What is real?" There was a search for meaning in a world without God, and a search for self with a critique of traditional values.
As the principal, it has come to my attention that my students does not like my decision of having to wear a uniform. To me personally, I believe uniforms will make the school more presentable. Not only that, it looks way more professional than what my current students wore in the past. Though you may not like it, it is now part of the requirements. Have a nice day.