Meaning: noun: Khazana, treasury, treasure house, treasure trove.
ਪੀਊ ਦਾਦੇ ਕਾ ਖੋਲਿ ਡਿਠਾ ਖਜਾਨਾ॥ ਤਾ ਮੇਰੈ ਮਨਿ ਭਇਆ ਨਿਧਾਨਾ॥
peeoo daade kaa khol ḍiṭhaa khajaanaa.
taa merai man bha-i-aa nidhaanaa
When I opened the treasure trove of my father and grandfathers (my predecessors) and gazed or reflected on it, then my mind was enriched with its spiritual wealth. -Guru Arjan Sahib, Guru Granth Sahib, 186
Message: Guru Ram Das added his own compositions to the collection he had received from Guru Amar Das and passed them on to Guru Arjan. Guru Arjan himself acknowledges in the above quote that he received the compositions of his father and predecessors.
The verse tells us of the kind of happiness and bliss he felt when he opened the books in which the previous four Gurus had written their divine compositions along with other hymns collected by them during their travels and dialogues with other Bhagats.
We are very fortunate that we have inherited this priceless treasure of divinity, wisdom and virtue. Let us also open this Treasure Trove daily. Let us spend more time in participating in congregations of the wise and virtuous persons where we can read, share and reflect on the message contained in Guru Granth Sahib.
Etymology: From Arabic/Persian khazaana.