The document discusses the 5th basic principle of spiritual practice according to different eras or times. It states that the recommended spiritual practice should match the average spiritual capacity of the era to allow for rapid spiritual progress. Specifically, it provides details on the different eras - Satyayuga, Tretayuga, Dwaaparyuga, and Kaliyuga - and the practices recommended for each, including path of knowledge, path of penance, path of meditation, path of ritualistic worship, and path of chanting the name of God. The document encourages reflecting on whether one's spiritual practice follows this 5th principle and offers chanting the name of God as a practice for any era.