This sentence comes from a famous saying in chapter 42 of Buddhism, which means: for people, love is like walking against the wind with a torch, and there is bound to be a disaster of burning hands.

Love is a strong desire and emotion. If you are too persistent, you will walk against the wind like a torch, which is not only difficult to achieve, but also brings you a lot of trouble and danger. Because excessive pursuit of love will make people lose their minds, indulge in it, and even make irrational behaviors, causing their own losses and injuries.

So this sentence warns people not to pursue love excessively, to be rational and sober, and not to be greedy and stubborn, otherwise it will bring danger and pain to themselves.