In a word, you cannot find hell anywhere aside from your own mind. It exists in your bosom. I will preach to you this very important teaching the best I can, so please listen carefully. It is just as Bodhisattva Mañjuśrī preached the secret teaching of attainment of Buddhahood immediately with the present body for a daughter of the Dragon King in chapter 12 of the Lotus Sutra.

Endeavor to strengthen your faith after listening to this important teaching. He who endeavors to strengthen his faith after listening to the teaching of the Lotus Sūtra is a true seeker of Buddhahood. Grand Master T’ien-t’ai says: “Indigo becomes deep blue even though it is created from indigo leaves.” This means that if dyed blue over and over, indigo blue will become deeper than its original color. Practicing the Lotus Sūtra is the same. By practicing the teaching of the Lotus Sūtra over and over, you will be a true follower. Practice is the best master.

Ueno-dono Goke-ama Go-henji, A Response to the Nun, Widow of Lord Ueno, Nyonin Gosho, Letters Addressed to Female Followers, Page 48-50