yadyapi tasya prabhā pradīpaprabhāvannopalabhyate, tathāpyanumeyā, dhyavadhāre {vyavadhāne} dūre cākarṣaṇadarśanād iti /
"Although its light rays are not perceived like the light of a lamp, nevertheless they can be inferred from the observation of attraction [occurring] at a distance and when [there is something] in between," [thus he says].