The most likely reason why the author put the word "crypt" in bold print it to distinguish a term that has appear for the first time in the text and might be unknown to the reader.
We can see that after the word "crypt", the author provides the synonym "tomb", which shows that he believes that it is very possible that the reader is not familiar with the term.
Nature is strong becasue she is able to control the cycle of life and is the stem of all living life. She is active in terms of always growing and accomidating towards life and intresting in her build up
