This gibberish is actually an adoration of ViShNu

yAyAyAyAyAyAyAyAyAyAyAyAyAyAyAyA |
yAyAyAyAyAyAyAyAyAyAyAyAyAyAyAyA ||

To understand the meaning, we need to do anvaya–break up and associate syllables in the verse.

yAyAyA, Ay, yAyAyA, Ay, AyAy,ayAya, ayAy, ayAy,ayAy, ayAy, |
ayAy, ayAyA, yAyAy, AyAyA, AyAy, yA, yA , yA, yA, yA, yA, yA, yA ||

यायाया, आय्, यायाया, आय्, आयाय्,अयाय, अयाय्, अयाय्,अयाय्, अयाय्, ।
अयाय्, अयाया, यायाय्, आयाया, आयाय्, या, या , या, या, या, या, या, या ॥

Now the meaning is revealed:

The sandals that adorn the Lord, which help in the attainment of all that is good, which gives knowledge, which causes the desire to attain the Lord, which removes all that is hostile, which attain the lord and are used to travel aound by which all the places can be reached–these sandals are for Lord Vishnu.