Maaniaa is a very high spiritual stage.  When one gets in to such a stage He reaches Jivan Mukti as very clearly presented by Dhan-Dhan SatGur Sachey Patshah Ji Nanak Patshah Ji in Jap Ji Sahib, “Manney Paawey Mokh Duaar.”    Maani-aa is going in to Mannan – deep meditation – Samadhi and Sunn Samadhi.  That is the meaning of this divine Shabad.