[2] Katagiri Roshi gave Hagen Dharma transmission (endorsement to teach) in 1989.

[6] Katagiri gave Hagen the name "Tokan" which means "breaking through barrier into peace and understanding.

"[7] Before opening Dharma Field, Hagen took frequent road trips to Menomonie and Eau Claire, Wisconsin to give workshops and to lead sesshins.

[9] Forester sold her home to help purchase St. Andrew's Lutheran Church in the Fulton neighborhood in the Southwest community of Minneapolis, where Hagen founded Dharma Field in 1997.

[9][10] James Ishmael Ford wrote that Dharma Field under Hagen had "...an independent sensibility that parallels Charlotte Joko Beck's teaching".