If the body and mind have not changed, it shows that one's practice has not gotten on track

Some people may say that attaining the first fruit without having eliminated afflictions means the body and mind will not be transformed, and there will be no particular change—this is normal. Yet in worldly matters, when the manas truly comes to know something, one can become extraordinarily excited, with great changes taking place in the body: the mind may be stirred to the utmost, or tears may well up in the eyes, or the body and mind may tremble, or the countenance may turn solemn, or... and so on.

During the process of cultivating the thirty-seven aids to enlightenment before attaining the fruit, the body and mind will undergo changes bit by bit. If there is no change, that means there has been no cultivation—either the direction of practice is wrong, or one is simply not diligent and does not take it to heart.