One verse

Bhagavad Gita 18.37

18.37

यत्तदग्रे विषमिव परिणामेऽमृतोपमम् | तत्सुखं सात्त्विकं प्रोक्तमात्मबुद्धिप्रसादजम् ||१८-३७||

yattadagre viṣamiva pariṇāme.amṛtopamam . tatsukhaṃ sāttvikaṃ proktamātmabuddhiprasādajam ||18-37||

yat
which
tat
that
agre
in the beginning
viṣam iva
like poison
pariṇāme
at the end
amṛta
nectar
upamam
compared to
tat
that
sukham
happiness
sāttvikam
in the mode of goodness
proktam
is said
ātma
in the self
buddhi
of intelligence
prasāda-jam
born of the satisfaction

That which in the beginning may be just like poison but at the end is just like nectar and which awakens one to self-realization is said to be happiness in the mode of goodness.