What are the essential practices and attitudes a devotee should cultivate to live a meaningful spiritual life, as opposed to simply seeking heavenly rewards?

Chapter 37 advises that a devotee should focus on inner development rather than striving for heaven, from which one falls after their merit is exhausted. The key practices include greatly increasing one's spirit of service and establishing unwavering devotion at the Guru's feet. A devotee should strive to see Divinity in all beings and maintain an eternal love for chanting God's name. It is also crucial to overcome the spiritual 'nooses of death': unrighteousness, ignorance, anger, and hatred. This path leads to a fearless state, which is far superior to any temporary heavenly pleasure.