The first volume of the "Good Feelings Literature" anthology, which conveys the joys of adult life, features 32 essays themed around hot springs. They'll warm you up gently.
--Table of Contents--
How to Take a Bath (Ki Ikeuchi)
Kamuiwakka Hot Springs (Mitsusaburo Arashiyama)
Nurukawa Inn (Eiji Yoshikawa)
Hotei-san in the Bathtub (Simon Yotsuya)
Hanamaki Hot Springs (Kotaro Takamura)
Memory (Mitsuyo Kakuta)
River Hot Springs (Misato Yanagi)
About a Beautiful Journey (Saisei Muro)
Kusatsu Hot Springs (Tadanori Yokoo)
Ikaho's Slow-Paved Bath (Kiyoshi Yamashita)
Kami-Suwa and Iida (Saburo Kawamoto)
Village Hot Springs (Taiko Hirabayashi)
Autumn at Shibu Onsen (Miyoko Ogawa)
Masutomi Hot Springs (Masuji Ibuse)
Beautiful Girl (Osamu Dazai)
Asakusa Kannon Hot Springs (Takeda Yuriko)
Miscellaneous Notes on Hot Springs (Excerpts) (Kido Okamoto)
Sulfur Springs (Shigeta Saito)
Mineral Springs of Tanzawa (Yoshiharu Tsuge)
A Journey Through the Hidden Hot Springs of Atami (Toshiro Tanemura)
Yugashima Hot Springs (Yasunari Kawabata)
Warm Baths (Ango Sakaguchi)
Hot Springs (Morio Kita)
With My Mother (Eiko Matsumoto)
"The Hot Spring of Rebirth" Welling in the Deep Darkness (Hiroshi Aramata)
Spring Hot Springs (Kanoko Okamoto)
My Hometown, Kinosaki Hot Springs (Naomi Uemura)
Snow-Viewing Sake at Okutsu Hot Springs (Ryuichi Tamura)
A Tour of the Hells of Beppu (Seiko Tanabe)
Full of Hot Springs (Haruki Murakami)
Stories of Swimming in Hot Springs (Shotaro Ikenami)
Women's Hot Springs (Katagai Tayama)