Jasleen Ji, read Gurbani that tells about Nirgun and Sargun.
like:
Kojq Kojq drsn cwhy ] (98-2, mwJ, mÚ 5)
khojat khojat darsan chaahay.
I have searched and searched, seeking the Blessed Vision of His Darshan.
Bwiq Bwiq bn bn Avgwhy ] (98-2, mwJ, mÚ 5)
bhaat bhaat ban ban avgaahay.
I travelled through all sorts of woods and forests.
inrguxu srguxu hir hir myrw koeI hY jIau Awix imlwvY jIau ]1] (98-2, mwJ, mÚ 5)
nirgun sargun har har mayraa ko-ee hai jee-o aan milaavai jee-o. ||1||
My Lord, Har, Har, is both absolute and related, unmanifest and manifest; is there anyone who can come and unite me with Him? ||1||
and
mwJ mhlw 3 ] (128-13)
maajh mehlaa 3.
Maajh, Third Mehl:
inrguxu srguxu Awpy soeI ] (128-13, mwJ, mÚ 3)
nirgun sargun aapay so-ee.
The Lord Himself is Unmanifest and Unrelated; He is Manifest and Related as well.
qqu pCwxY so pMifqu hoeI ] (128-13, mwJ, mÚ 3)
tat pachhaanai so pandit ho-ee.
Those who recognize this essential reality are the true Pandits, the spiritual scholars.
Awip qrY sgly kul qwrY hir nwmu mMin vswvixAw ]1] (128-13, mwJ, mÚ 3)
aap tarai saglay kul taarai har naam man vasaavani-aa. ||1||
They save themselves, and save all their families and ancestors as well, when they enshrine the Lord's Name in the mind. ||1||