That which is like poison in the beginning, but like nectar (amṛta) in the end, That happiness (sukha) is declared to be of goodness (sāttvika), born from the tranquility of one's own understanding (ātmabuddhiprasāda).
The joy of lucidity at first seems like poison but is in the end like ambrosia, from the calm of self-understanding.
(37) which at first seems like poison but in time transmutes itself into what seems to be ambrosia, is called pleasure in Goodness' way, for it springs from that serenity which comes from apperception of the self.
18.37 That which is like poison in the beginning, but comparable to nectar in the end, and which, arises from the purity of one's intellect-that joy is spoken of as born of sattva.
18.37 That which is like a poison at first but becomes like elixir in the end, born from the serene state of mind focusing on the self --- such pleasure is said to be Sāttvika.
18.37 That which is like poison at first but in the end like nectar -- that happiness is declared to be Sattvic, born of the purity of one's own mind due to Self-realization.