To enter the spiritual world, you have to be spiritualized

In his purport to “nitai-pada-kamala” by Narottama Dasa Thakura, Srila Prabhupada tells us, “Without being eternal, nobody can serve the eternal. That is the Vedic injunction. Without becoming Brahman, one cannot approach the Supreme Brahman. Just like without being fire, nobody can enter into the fire. Without being water, nobody can enter into the water. Similarly, without being fully spiritualized, nobody can enter into the spiritual kingdom. If you catch the lotus feet of Nityananda, then you become immediately spiritualized. Just like if you touch electricity, immediately you become electrified.”