When applied to the gods, the meaning of madakyút is by no means certain. It might mean rushing about fiercely, reeling with delight, this delight being produced by the Soma, but it may also mean sending down delight, i. e. rain or Soma. The root kyu is particularly applicable to the sending down of rain; cf. Taitt. Samh. II, 4, 9, 2; 10, 3; III, 3, 4, 1; and Indra and his horses, to whom this epithet is chiefly applied, are frequently asked to send down rain. However, madakyút is also applied to real horses (I, 126, 4) where givers of rain would be an inappropriate epithet. I should therefore translate madakyút, when applied to Indra, to his horses, to the Asvins, or to horses in general by furiously or wildly moving about, as if 'made or madena kyavate,' he moves in a state of delight, or in a state of intoxication, such as was not incompatible with the character of the ancient gods. Here again the difficulty of rendering Vedic thought in English, or any other modern language, becomes apparent, for we have no poetical word to express a high state of mental excitement produced by drinking the intoxicating juice of the Soma or other plants, which has not something opprobrious mixed up with it, while in ancient times that state of excitement was celebrated as a blessing of the gods, as not unworthy of the gods themselves, nay, as a state in which both the warrior and the poet would perform their highest achievements. The German R a u sc h is the nearest approach to the Sanskrit mada.
VIII, I, 21. vísveshâm tarutâ´ram mada-kyútam máde hí sma dádâti nah.
Indra, the conqueror of all, who rushes about in rapture, for in rapture he bestows gifts upon us. Cf. I, 51, 2.
The horses of Indra are called madakyút, I, 81, 3; VIII, 33, 18; 34, 9. Ordinary horses, I, 126, 4.
It is more surprising to see this epithet applied to the Asvins, who are generally represented as moving about with exemplary steadiness. However we read:
VIII, 22, 16. mánah-gavasâ vrishanâ mada-kyutâ.
Ye two Asvins, quick as thought, powerful, wildly moving; or, as Sâyana proposes, liberal givers, humblers of your enemies. See also VIII, 35, 19.
Most frequently madakyút is applied to Soma, X, 30, 9; IX, 32, 1; 53, 4; 79, 2; 108, 11; where particularly the last passage deserves attention, in which Soma is called madakyútam sahásra-dhâram vrishabhám.
Lastly, even the wealth itself which the Maruts are asked to send down from heaven, most likely rain, is called, VIII, 7, 13, rayím mada-kyútam puru-kshúm visvadhâyasam.
In all these passages we must translate mada-kyút by bringing delight, showering down delight.