Bhagavad Gita 15.2

अधश्चोर्ध्वं प्रसृतास्तस्य शाखा गुणप्रवृद्ध विषयप्रवाला: |
अधश्च मूलान्यनुसंतानि कर्मानुबंधिनी मनुष्यलोके

Translation

The branches of the tree extend upward and downward, nourished by the three guṇas, with the objects of the senses as tender buds. The roots of the tree hang downward, causing the flow of karma in the human form. Below, its roots branch out causing (karmic) actions in the world of humans.