Chrysostom: " He means this; The present is a time of joy and rejoicing; sorrow is therefore not to be now brought forward; and fasting is naturally grievous, and to all those that are yet weak; for to those that seek to contemplate wisdom, it is pleasant; He therefore speaks here according to the former opinion.
Chrysostom said: "He's suggesting that this moment is a time for happiness and festivity; we shouldn't bring up sadness now; fasting, however, can be difficult, especially for those who are still developing their spiritual practice; on the other hand, seeking wisdom can be a pleasant experience; So, he's speaking here in line with his previous perspective.