Why was nature so important to anne frank?

Anne Frank was a huge fan of nature and she believed that nature brought solace to all troubles. 
Anne Frank said herself,“The best remedy for those who are afraid, lonely or unhappy is to go outside, somewhere where they can be quite alone with the heavens, nature and God. Because only then does one feel that all is as it should be and that God wishes to see people happy, amidst the simple beauty of nature. As longs as this exists, and it certainly always will, I know that then there will always be comfort for every sorrow, whatever the circumstances may be. And I firmly believe that nature brings solace in all troubles.”

Hope this helps let me know if you need further explanation or more quotes. :)
 

Anne Frank loved nature for different reasons. Because she was in the attic for so long she didn't get the chance to go outside. so every time she closed her eyes she imaged the outdoors, the fields of flowers and the different animals.