alkafi-15051Vol. 8, p. 230
سَمِعْتُ أَبَا الْحَسَنِ ع يَقُولُ طَبَائِعُ الْجِسْمِ عَلَى أَرْبَعَةٍ فَمِنْهَا الْهَوَاءُ الَّذِي لَا تَحْيَا النَّفْسُ إِلَّا بِهِ وَ بِنَسِيمِهِ وَ يُخْرِجُ مَا فِي الْجِسْمِ مِنْ دَاءٍ وَ عُفُونَةٍ وَ الْأَرْضُ[2] الَّتِي قَدْ تُوَلِّدُ الْيُبْسَ وَ الْحَرَارَةَ وَ الطَّعَامُ[3] وَ مِنْهُ يَتَوَلَّدُ الدَّمُ أَ لَا تَرَى أَنَّهُ يَصِيرُ إِلَى الْمَعِدَةِ فَتُغَذِّيهِ حَتَّى يَلِينَ ثُمَّ يَصْفُوَ فَتَأْخُذُ
The body is built upon four, so from it is the air without which ‘the self’ cannot survive except by its (in and out) flow, and it takes out the diseases which are in the body and the decay, and the dirt (earth) which gives causes the dryness, and the energy (heat), and the food and from it the blood is generated. Inde