one's whole soul; all one's heart and soul
Used almost exclusively in the phrase 全霊を傾けて (ぜんれいをかたむけて) meaning 'with all one's heart and soul' or 'devoting one's entire being'. Rarely appears outside this construction.
He devoted his whole soul to that research.
complete devotion; body and soul; one's best
Compound of 全 (ぜん, 'whole, entire') and 霊 (れい, 'spirit, soul'). The exact historical derivation is uncertain, but the word is conventionally associated with the idea of one's complete spiritual devotion.