अधश्चोर्ध्वं प्रसृतास्तस्य शाखा
15.2 The branches of that (Tree), extending down-wards and upwards, are strengthened by the alities and have sense-objects as their shoots. And the roots, which are followed by actions, spread down-wards in the human world [According to A.G. and M.S. manusya-loke means a body distinguished by Brahminhood etc.].
15.2 The secondary roots of this tree having the main roots in the world of Brahman and its crest in men ramify below in the world of men. They bind them according to their Karma. The meaning is that the effects of acts causing bondag become roots in the world of men. For, the effect of actions done in the human state brings about the further condition of men, beasts etc., down below, and of divinities etc., up above.
Adhashchordhwam prasritaastasya shaakhaahGunapravriddhaa vishayapravaalaah; Adhashcha moolaanyanusantataaniKarmaanubandheeni manushyaloke.
adhaḥ—downward; cha—and; ūrdhvam—upward; prasṛitāḥ—extended; tasya—its; śhākhāḥ—branches; guṇa—modes of material nature; pravṛiddhāḥ—nourished; viṣhaya—objects of the senses; pravālāḥ—buds; adhaḥ—downward; cha—and; mūlāni—roots; anusantatāni—keep growing; karma—actions; anubandhīni—bound; manuṣhya-loke—in the world of humans