We find love between mother and son, between wife and husband, friend and friend, master and servant or master and dog. But these are only reflections of the spiritual world. Krsna also loves the cows and calves, so this propensity to love even an animal is there in the spiritual world. Otherwise how can it be reflected here? If in the reality there is nothing like that, then how can it be reflected here?
The Absolute Truth is defined as 'jamnady asya yatah' - that from which everything emanates. So everything is there in the spiritual world but it's perveted reflection is this material world. To understand that original propensity to love, we have to practice Krsna Consciousness.
Real love is in the spiritual world between Radha and Krsna, between Krsna and Gopis, between the cowherd boys and Krsna, between Krsna and the cows, between Krsna and the flowers, trees and water. Unfortunately, we are running behind the reflection and are being satisfied in this material world.
But in this human life, we have the opportunity to understand Krsna in truth. Krsna says: 'janma karam ca me divyam, evam yo vetti tattvatah'. 'My birth and activities are all transcendental. Try to understand Me.'
So try to learn about Krsna in truth. Learn the science of Krsna and try to love Krsna. The process is that we should simply chant the holy names of Krsna, take prasadam, worship the Deity and follow the spiritual master. Then life will be successful.
Srila Prabhupada ki Jay!!