Board Thread:Naruto Discussions/@comment-24847491-20140921145042/@comment-26367861-20180125231815

Or his sage mode is from his wood release. Since wood release comes from shinju dna like sharingan does maybe their are more than one aspect to a kekkei genkai than just nature. This is evident in lava and boil release which can use steam acid and rubber. I also wonder if obsidian is possible use of lava release. Diamond with crystal release too. The third eye on hashi is one thing that sparked my theory possibly hinting it as an incomplete six paths sage mode. Hagoromo had a similar mark on his forehead. Hashirama is also the only one to fully master wood style. If he had all 9 beasts chakra he possibly would have awakened six paths sage mode.