Naima_7.3_DQ20

Love is like a plant, you have to water it, trim it. Love is like roses because they also have thorns. Love is a journey. Love is madness. Love is a burning fire. Love is you and me. 

There are many songs in which we can find more metaphors about love

Your love is a song (Switchfoot)
Love is a battlefield (Pat Benatar)
Love is blindness (Jack White)
Your love is like a river (Third Day)

I think we can even find definitions of love in the Bible-

1 Corinthians 13:4-8

New International Version (NIV)

⁴ Love is patient, love is kind. It does not envy, it does not boast, it is not proud. ⁵ It does not dishonor others, it is not self-seeking, it is not easily angered, it keeps no record of wrongs. ⁶ Love does not delight in evil but rejoices with the truth. ⁷ It always protects, always trusts, always hopes, always perseveres.
⁸ Love never fails. But where there are prophecies, they will cease; where there are tongues, they will be stilled; where there is knowledge, it will pass away.