There is certainly a great deal of comfort in the first-class coach of a train, but if the train does not move toward its destination, what is the benefit of an air-conditioned compartment? Contemporary civilization is much too concerned with making the material body comfortable. No one has information about the real destination of life, which is to go back to Godhead. We must not just remain seated in a comfortable compartment; we should see whether or not our vehicle is moving toward its real destination. There is no ultimate benefit in making the material body comfortable at the expense of forgetting the prime necessity of life, which is to regain our lost spiritual identity. The boat of human life is constructed in such a way that it must move toward a spiritual destination.
Unfortunately this body is anchored to mundane consciousness by five strong chains, which are:
(1) attachment to the material body due to ignorance of spiritual facts
(2) attachment to kinsmen due to bodily relations
(3) attachment to the land of birth and to material possessions such as house, furniture, estates, property, business papers, etc.
(4) attachment to material science, which always remains mysterious for want of spiritual light
(5) attachment to religious forms and holy rituals without knowing the Personality of Godhead or His devotees, who make them holy. These attachments, which anchor the boat of the human body, are explained in detail in the Fifteenth Chapter of the Bhagavad-gita. There they are compared to a deeply rooted banyan tree which is ever increasing its hold on the earth. It is very difficult to uproot such a strong banyan tree, but the Lord recommends the following process: “The real form of this tree cannot be perceived in this world. No one can understand where it ends, where it begins, or where its foundation is. But with determination, one must cut down this tree with the weapon of detachment. So doing, one must seek that place from which, having once gone, one never returns, and there surrender to that Supreme Personality of Godhead from whom everything has begun and in whom everything is abiding since time immemorial.” [Bg. 15.3-4]
Source: A.C. Bhaktivedanta Swami Prabhupada (2014 edition), “The Science of Self-Realization”, Page 6