Aashna means to be familiar with something or someone, a friend or lover
Dard-aashna means a compassionate person or one who understands another’s pain.
Haqq-aashna means knowing the truth

Here is a couplet written by the famous Urdu poet Hakim Momin Kham Momin, as part of his famous ghazal ‘woh jo hum mein tum mein qaraar tha’

kabhi hum mein tum mein bhi chaah thi, kabhi hum se tum se bhi raah thi
kabhi hum bhi tum bhi they aashna, tumhein yaad ho ke naa yaad ho

Once there was this desire in me and in you, once there was this common path for me and you,
Once we were dear friends, maybe you remember, or maybe not.

Here is this famous ghazal in Begum Akhtar’s voice: