PURPORT

Generally those engaged in spiritual advancement take food only once, either in the afternoon or in the evening. If one takes food only once, naturally he does not become fat. The learned sage, however, was quite fat, and therefore Prahlada Maharaja was very much surprised. Because of being experienced in self-realization, a transcendentalist certainly becomes bright-faced. And one who is advanced in self-realization must be considered to possess the body of a brahmana. Because the bright-faced saintly person was lying down and not working and yet was quite fat, Prahlada Maharaja was puzzled and wanted to question him about this.