A lot of people define "Love" in various ways.
I suppose, It is about how you know it for yourself. There is no words as to how to exactly to define it because it is something you have to experience for yourself.
I used to think I knew what "Love" was like but after experiencing it, it was an eye-opener. So, with that, It's just something that you have to see for yourself rather than forming it or basing it on anyone else's perspectives.
Isaiah 33:6 - "He will be the sure foundation for your times, a rich store of salvation and wisdom and knowledge; the fear of the Lord is the key to this treasure."