Love of God can be developed scientifically. From time immemorial, it has been called the science of God realization. This science was actively propagated 500 Years ago by Sri Caitanya Mahaprabhu and recently, a few decades ago, Bhaktivedanta Swami Prabhupada has delivered hundreds of discourses on this great science in an easily understandable way. It is recommended to subscribe to the daily delivery program.