17.10 Stale (Yatayamam) means that food which has lost its original state, being kept for a long time. Tasteless (Gatarasam) means that which has lost its natural taste. Putrid (Puti) means emitting a bad smell. Decayed (Paryusitam) means aciring a rancidity by lapse of time. Refuse (Ucchistam) means the food that has remained over after being partaken by persons other than Gurus, etc. Unclean (Amedhyam) is that which is not fit for offering in sacrifice or worship. The meaning is that, being unfit for offering in worship, they cannot become the sacrificial remainder. Foods of this kind which promote the growth of Tamas are dear to those who are characterised by Tamas. Food (Bhojana) means that which is eaten. Tamasik food promotes further increase of Tamas. Hence, those persons who care for their own welfare by the growth of Sattva, should eat food charaterised by Sattva.