Meaning
These sacred words are from guru amar das, the third guru of the Sikhs.
I am in bliss, O my Mother, for I have found my true guru. I have found my true guru with intuitive ease and my mind resonates with the music of delight. Precious melodies and heavenly harmonies have come to sing the shabad. Those who sing shabad, The Lord dwells within their minds. Says Nanak: I am in ecstasy because I have found my guru.
Effect
It means bliss, delight.
But it is not delight in the way we are used to.
Anand is a state of grace that comes when every word you say and every action you perform sustains the light and journey of your soul.