Seishinkan translates approximately into “House of the sincere heart”. It depicts a place where you are invited to learn without bias, negative feelings and with an open mind, but also means that a pure mind is the truest dojo.

Aikido Seishinkan is headed by Virgil Lea (3rd Dan), and teaches Aikikai Aikido.

Reading of the picture on the left
合 – Ai (Harmony, love)\
氣 – Ki (Spirit, Energy)*
道 – Dou (Way)
誠 – Sei (Truth, sincerity)
心 – Shin (Heart)
館 – Kan (House, hall, building)

* This Kanji is archaic and you will often see 気 used instead. It has the same meaning and reading.