Text 13

vidhi-hinam asrstannam
mantra-hinam adaksinam
shraddha-virahitam yajnam
tamasam paricakshate

Translation

Any sacrifice performed without regard for the directions of scripture, without distribution of prasadam [spiritual food], without chanting of Vedic hymns and remunerations to the priests, and without faith is considered to be in the mode of ignorance.

Commentary by Srila Prabhupada

Faith in the mode of darkness or ignorance is actually faithlessness. Sometimes people worship some demigod just to make money and then spend the money for recreation, ignoring the scriptural injunctions. Such ceremonial shows of religiosity are not accepted as genuine. They are all in the mode of darkness; they produce a demoniac mentality and do not benefit human society.

Commentary by Sri Visvanatha Cakravarti Thakur

Asrsta annam means without giving food in charity.