What is 'undifferentiated worship' (Abheda-bhajan) as explained in the Satcharitra, and how does one attain it?

In Chapter 45, 'undifferentiated worship' or 'Abheda-bhajan' is described as the enlightened state where divinity is perceived in all beings. The path to attaining this state is clearly outlined. It begins with the seeker practicing discrimination, realizing that Brahman is eternal and the world is transient. This realization leads to the renunciation of the transient world, which in turn gives birth to dispassion (Vairagya). The next crucial step is to understand that the Sadguru is the 'solid mass of Brahman-consciousness.' By meditating on the Guru with this firm conviction, the seeker's perception is transformed, and divinity then naturally arises in their view of all beings, culminating in the state of Abheda-bhajan.